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OpenSourceAlternatives

Postman alternatives

10 projects to consider for your Postman workflows.

9 open source · 1 custom license

Explore Hoppscotch, Bruno and Firecamp. Each takes a different approach to your Postman workflows. Read its capabilities and limitations to find the right fit.

Catalogue facts checked August 31, 2026

Hoppscotch

API client that runs in the browser and stays fast

Open sourceMITSelf-hosted

API-fluent developers and teams who live in the browser get the most from Hoppscotch: its no-install web client plus desktop and CLI editions cover REST, GraphQL, and realtime testing with collections, environments, and scripted requests. The decisive advantage is deployment choice, since Docker, Kubernetes, or one-click self-hosting keeps sensitive collections off vendor infrastructure. Teams without HTTP fluency should instead choose a guided incumbent such as Postman, and regulated buyers must verify current Cloud SSO and audit coverage before committing.[1][2]

Good fit. Frontend and full-stack developers doing daily API debugging: the browser client removes install friction and keeps request iteration next to the app under test.[1]

Keep in mind. Non-technical users needing guided API exploration: Hoppscotch assumes HTTP fluency, so teams without developers will onboard faster on a guided incumbent such as Postman.[1]

Repository review signals: unknown status, very stale · Observed August 31, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 9, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

  1. Hoppscotch documentation (official)

    official · Observed October 9, 2026

    Official docs root: client editions (web, desktop, CLI), testing workflows (REST, GraphQL, realtime), collections and environments, self-host deployment (Docker, Kubernetes, one-click), vendor cloud, open-source ecosystem.

  2. Hoppscotch homepage (official)

    official · Observed October 9, 2026

    Official homepage: open-source API development ecosystem positioning; offline, on-prem, and cloud availability.

Bruno

Open-source API client that stores collections as plain-text files

Open sourceMIT

Teams that version API collections in Git and want a client that works fully offline benefit most from Bruno. Its Bru plain-text format keeps every request diffable and mergeable, and the Bru command-line tool runs collections with exit codes in CI pipelines and Docker. Teams that need built-in cloud sync, hosted shared workspaces, or managed collaboration should choose something else. If an offline Git-native API workflow fits your team, choose Bruno; if hosted team collaboration is the requirement, Postman remains the incumbent choice.[1][2][3]

Good fit. Git-disciplined API teams gain pull requests, code review, and history on collections that live as Bru files alongside application code.[1][2]

Keep in mind. Bruno offers no built-in cloud sync or hosted shared workspaces by design; teams depending on managed collaboration will miss Postman-style workspaces.[1][2]

Repository review signals: unknown status, very stale · Observed October 3, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 9, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

Two publisher how-to guides (Keploy, CoderCops) inspected October 9, 2026. Both are vendor blogs with product links, not independent user reports. Purposive sample of two publisher guides; not representative, not independently verified, and neither is a firsthand user account. No accessible original Reddit or G2 reports were found. Claims about user sentiment are therefore withheld.

  1. What is Bruno - Bruno Docs

    official · Observed October 9, 2026

    Official docs: filesystem collections, Bru language, offline no-account operation, REST/GraphQL/WebSocket/gRPC, JS tests, Postman/Insomnia import, v2 Electron/React rewrite, CLI/Docker.

  2. usebruno/bruno - GitHub

    official · Observed October 9, 2026

    Repository: 47,412 stars, 2,965 forks, 491 contributors, MIT license, public non-archived non-fork. Offline-only no-login positioning; Bru markup; proprietary CLI/desktop built on open core; contributors paid since v1.

  3. Bruno API testing: a complete guide (2026)

    community · Observed October 9, 2026

    Keploy publisher how-to guide, not an independent user report: Bruno as lightweight Postman alternative; strengths offline privacy, Git collaboration, affordability; limitations smaller ecosystem, limited collaboration, enterprise readiness.

  4. Bruno: The API Client That Stores Requests in Git

    community · Observed October 9, 2026

    CoderCops publisher how-to guide, not an independent user report: Bru files in Git, v2 rewrite features, bru run CLI with env vars and HTML reports, Postman/Insomnia/OpenAPI import.

Firecamp

Open-source API client for REST, GraphQL, and WebSocket testing

Custom licenseAGPL-3.0-onlyManaged hosting

Firecamp fits small API teams testing REST alongside GraphQL or WebSocket traffic who want one free client for playgrounds, collections, documentation, and Postman import. Its team seats are billed per editor with metered AI tokens, and self-hosting is roadmap-only. Cloud-collaboration teams should start with the free tier; Git-local teams should choose Bruno instead.[1][2][3][4]

Good fit. We would evaluate Firecamp for small API teams on a budget: the free tier covers two members with unlimited personal requests, and Team seats start at $12.50 per editor per month billed annually.[1][2]

Keep in mind. Teams that must self-host should look elsewhere: self-hosting is listed as upcoming on the public roadmap, not a documented deployment option, so private-deployment requirements cannot be met today.[1]

Repository review signals: unknown status, very stale · Observed October 5, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 9, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

Inspected sample: one secondary directory listing (SaaSHub, review count visible, no verifiable original text) plus vendor-selected homepage quotes that were excluded. No original Reddit or G2 firsthand reports were located within the research budget. Purposive inspection found no original firsthand reports: five search queries located no Reddit or G2 originals, and the one secondary listing showed a review count with no verifiable original text. Vendor homepage quotes are vendor-selected and excluded as non-independent. No experience claim is made from this sample.

  1. Firecamp - A Campsite for Developers

    official · Observed October 9, 2026

    Official homepage: six playgrounds; current features (collections, workspaces, docs, Postman import, AI, CLI); upcoming items (gRPC, environments sync, self-hosted, plugins); vendor-selected testimonials excluded; 2023 launch.

  2. Firecamp pricing

    official · Observed October 9, 2026

    Official pricing: free tier (2 members, 10k AI tokens, unlimited personal requests); Team $12.5/editor/month annually or $14 monthly, min 1 editor; Enterprise custom; billing via Polar.

  3. Firecamp vs Bruno comparison

    official · Observed October 9, 2026

    Official comparison conceding Bruno is free and Postman can be easier for non-technical teammates. Competitor price figures are single-sourced and not reused.

  4. Bruno - open-source IDE for exploring and testing APIs

    official · Observed October 9, 2026

    Official Bruno homepage: offline, Git-friendly, local-first collections; no account required to start; open-source. Used only for the compatibility contrast.

  5. SaaSHub Firecamp reviews listing

    community · Observed October 9, 2026

    Secondary listing showing a review count with no verifiable original review text on the inspected page. Used only to document the inspected sample.

HTTPie

User-friendly command-line HTTP client for testing APIs

Open sourceBSD-3-Clause

Teams and developers who test REST APIs from the terminal several times a day benefit most from HTTPie. Its expressive syntax turns requests into readable one-liners with first-class JSON handling and colorized output. The friendly syntax hides low-level detail, so engineers debugging protocol behavior line by line should keep curl within reach. If readable terminal API testing fits your workflow, choose HTTPie; if shared team workspaces matter more, choose Postman.[1][2][3]

Good fit. Terminal-first API developers get readable one-line requests with JSON defaults for engineers who test endpoints from the shell all day.[1][2]

Keep in mind. Protocol-level debuggers will find the friendly defaults hide the raw wire detail that curl exposes.[1][2]

Repository review signals: unknown status, stale · Observed October 11, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 11, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

One DEV practitioner listicle mentioning HTTPie inspected October 11, 2026. Capability facts come from official documentation cited on their own claims. Purposive sample of a single practitioner mention; not representative, not independently verified, and not a firsthand user account. No accessible original Reddit or G2 reports were found. Claims about user sentiment are therefore withheld.

  1. HTTPie - API testing client that flows with you

    official · Observed October 11, 2026

    Official homepage: HTTPie makes APIs simple; Terminal is the original open-source API testing client and Desktop/Web wrap it graphically; install channels apt, brew, choco, pip, port, snap, yum.

  2. HTTPie CLI: HTTP and API testing client

    official · Observed October 11, 2026

    Official CLI page: expressive syntax, first-class JSON, colorized output, persistent sessions, forms and uploads, HTTPS/proxies/auth, raw data and headers, wget-like downloads, extensions API, http and https commands with runnable examples.

  3. HTTPie CLI docs

    official · Observed October 11, 2026

    Official CLI docs version 3.2.4: JSON handling, forms and uploads, headers, offline mode, cookies, basic/digest/bearer auth, redirects, proxies, HTTPS verification and client certificates, output options, download mode with resume, sessions, config, scripting, plugin manager.

  4. 7 Mac Apps Every Backend Developer Needs in 2026 - DEV Community

    community · Observed October 11, 2026

    Practitioner listicle by Henry Godnick (March 26): ranks HTTPie among backend Mac apps as 'what Postman should have been'; CLI syntax more intuitive than curl, auto-formatted colorized output, auth and JSON without gymnastics. A single mention, not a firsthand user report.

Insomnia

Open-source API client for designing, testing, and mocking APIs

Open sourceApache-2.0Managed hosting

Teams that design APIs from OpenAPI specs and need testing, mocking, and CI automation in the same client benefit most from Insomnia. Its unlimited collection runs, Inso CLI with pass/fail exit codes, and local/Git/cloud storage options carry one project from first request to pipeline gate. Teams that need fully offline work with no account, or that will not pay per-seat fees for Git sync and SSO, should choose something else. If spec-driven API work with Kong Konnect integration fits your team, choose Insomnia; if offline-first Git-native simplicity is the requirement, Bruno is the closer fit.[1][2][3][4]

Good fit. Spec-driven API teams keep the OpenAPI contract and its verification together, from first draft through testing and mocking in one client.[1][2]

Keep in mind. Cloud-first collaboration and account-based sync, with Git Sync beyond three users on paid plans, disappoint developers who want zero-account local work.[1][2]

Repository review signals: unknown status, stale · Observed October 11, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 11, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

Three G2 Kong Insomnia reviews inspected October 11, 2026: QA Consultant (5/5, March 2026), Technical Project Manager (4.5/5, July 2026), Banking Senior Software Engineer (3.5/5, September 2025). Purposive sample of three inspected G2 reviews; not representative and not independently verified. The five-review 4.6 average comes from a G2 comparison page and is reported as context, not as our own satisfaction score. No Reddit firsthand reports were found. Claims about broader user sentiment are therefore withheld.

  1. The Collaborative API Development Platform - Insomnia

    official · Observed October 11, 2026

    Official homepage: AI-native API platform by Kong; REST/GraphQL/gRPC/WSS; design, CLI, mocking, testing, local/Git/cloud storage, MCP, Konnect; free-tier contents; Insomnia 13 GA announcement.

  2. Pricing - Insomnia

    official · Observed October 11, 2026

    Official pricing checked October 11, 2026: Essentials $0, Pro $12/user/month, Enterprise $45/user/month; mock quotas and $10/25k add-on; E2EE, RBAC, SSO/SCIM plan gates.

  3. Insomnia documentation landing

    official · Observed October 11, 2026

    Official docs: open source desktop app for designing/debugging/testing APIs; auth helpers, codegen, env vars; macOS/Windows/Ubuntu installs; collections, mocks, Inso CLI, Koh CLI, storage modes, RBAC/SSO/SCIM, E2EE, capability matrix.

  4. Import and export reference for Insomnia

    official · Observed October 11, 2026

    Official import/export reference: Postman v2.0/v2.1 collection and environment import; Insomnia/HAR/OpenAPI/Swagger/WSDL/cURL formats; inso run test and inso run collection with exit codes; legacy unit tests hidden since 13.3.

  5. Kong Insomnia Reviews - G2 (Yegor L., March 2026)

    community · Observed October 11, 2026

    G2 review by Yegor L., QA Consultant, March 11, 2026, 5/5: praises open source, security, flawless functionality.

  6. Kong Insomnia Reviews - G2 (Muhammed A., July 2026)

    community · Observed October 11, 2026

    G2 review by Muhammed A., Technical Project Manager, July 21, 2026, 4.5/5: clean lightweight interface, fast REST/GraphQL testing, environment management.

  7. Kong Insomnia Reviews - G2 (Banking engineer, September 2025)

    community · Observed October 11, 2026

    G2 review by Verified User in Banking, Senior Software Engineer, September 30, 2025, 3.5/5: UI differs from other platforms, new users have difficulties.

Mockoon

Open-source tool to design and run mock REST APIs locally

Open sourceMITSelf-hostedManaged hosting

Mockoon is a free, MIT-licensed tool for running mock REST APIs locally with no account, and its desktop GUI, rule-based matching, templating, and CLI/Docker path into CI suit developers who want offline-first mocks. Team collaboration, managed deployments, and OIDC single sign-on are paid Pro capabilities starting at five licenses, so teams needing hosted workspaces on a free tier should stay with an incumbent like Postman. If local-first mocking fits your workflow, choose Mockoon; if hosted collaboration is the requirement, choose the cloud incumbent.[1][2][3][4]

Good fit. Frontend developers building against APIs that are unfinished, rate-limited, or expensive to call in development.[1][2][3]

Keep in mind. Teams that need hosted collaboration, shared workspaces, or cloud sync without paying: those are Pro features starting at five licenses.[1][2]

Repository review signals: unknown status, stale · Observed October 11, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 11, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

  1. Mockoon homepage - create mock APIs in seconds

    official · Observed October 11, 2026

    Official homepage: scope, aggregate ratings, download entry points.

  2. What is Mockoon?

    official · Observed October 11, 2026

    Official explainer: what Mockoon is, desktop plus CLI and Docker delivery.

  3. Mockoon complete list of features

    official · Observed October 11, 2026

    Official features catalogue: rules, templating, proxy, OpenAPI, TLS, latency.

  4. Mockoon Pro pricing

    official · Observed October 11, 2026

    Official pricing: free core scope, Pro team plan terms, enterprise custom pricing.

  5. Mockoon FAQ

    official · Observed October 11, 2026

    Official FAQ: licence, offline use, CI delivery, Pro cost.

Requestly

Open-source API client and HTTP interceptor for testing APIs

Open sourceAGPL-3.0Managed hosting

Requestly suits API teams and frontend developers who want an open-source client plus HTTP interception with a documented path off Postman. Its evidenced strengths are request modification, mocking, multi-protocol support, and collection runs. Self-hosting, public API, and data residency are unknown from the inspected evidence. Check current pricing and the enterprise path before committing a team.[1][2][3][4]

Good fit. API development and testing teams that need a client, mocks, and collection runs in one workflow.[1][2][3]

Keep in mind. Self-hosting is unknown: it is mentioned only via the enterprise sales path and no documented self-host procedure was inspected.[1]

Repository review signals: unknown status, stale · Observed October 12, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 12, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

  1. Requestly homepage

    official · Observed October 12, 2026

    Official homepage: AI-first API platform to design, build, and test APIs; hosts a Requestly-vs-Postman comparison, one-click Postman import, environments, collection runner, CLI, team workspaces, local projects, and enterprise security.

  2. Requestly HTTP Interceptor product page

    official · Observed October 12, 2026

    Official HTTP Interceptor product page: describes an open-source tool to intercept and modify network requests, headers, and API responses; links Open Source to github.com/requestly/requestly.

  3. Requestly downloads

    official · Observed October 12, 2026

    Official downloads page: desktop-first API client with macOS, Windows, and Linux builds; HTTP interceptor remains available as a browser extension.

  4. Requestly enterprise security

    official · Observed October 12, 2026

    Official enterprise security page: SOC 2 Type II, SAML single sign-on with Okta and Microsoft Entra ID, RBAC, encryption in transit and at rest, and audit logs, with a talk-to-sales path.

  5. requestly/requestly on GitHub

    official · Observed October 12, 2026

    Canonical GitHub repo requestly/requestly: self-described community hub for the Requestly API Client and privacy-first Postman alternative; homepage field points to requestly.com.

Scalar

Open-source API client and docs generated from OpenAPI

Open sourceMITSelf-hostedManaged hosting

Scalar suits OpenAPI-first teams that want docs, an offline client, SDKs, and MCP servers from one document, starting free. Teams needing non-HTTP protocols, synced shared workspaces, or Postman's ecosystem should stay put - Scalar itself concedes those gaps.[1][2][3][4]

Good fit. Teams that already maintain an OpenAPI document get docs, a client, SDKs, and MCP servers from that single source of truth without rebuilding collections by hand.[1][2]

Keep in mind. Scalar's own comparison states its client is HTTP-first and that gRPC, GraphQL, WebSocket, and SOAP clients are on the roadmap but not shipped; teams needing non-HTTP protocols this week are told Postman does it and Scalar does not yet.[1]

Repository review signals: unknown status, stale · Observed October 12, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 12, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

  1. Scalar pricing

    official · Observed October 12, 2026

    Pricing: Free $0, Pro $150/mo, Business $600/mo with SSO, Enterprise custom with SLAs; 7-day Pro trial; SDK endpoint caps; Agent Scalar credits.

  2. Scalar open-source API client

    official · Observed October 12, 2026

    Client page: MIT, offline-first, browser plus macOS/Windows/Linux; OpenAPI-native import, watch mode, pm-compatible scripts; 15.7k stars; Microsoft Learn coverage.

  3. Scalar API documentation generator from OpenAPI

    official · Observed October 12, 2026

    References page: MIT renderer for OpenAPI 3.0/3.1, Swagger 2.0 upgrade, AsyncAPI; npm, CDN, single HTML; 40-plus framework integrations; hosted Scalar Docs.

  4. Scalar vs Postman (official docs)

    official · Observed October 12, 2026

    Official comparison (Sept 2026): MIT vs closed source, OpenAPI-native vs collections, local vs cloud sync; concedes Postman leads in protocols, collaboration, ecosystem.

Voiden

Offline, Git-native API workspace in plain Markdown

Open sourceApache-2.0

Voiden is an open-source, offline-first API client that replaces cloud-synced collections with plain-text .void files versioned in Git. It suits developers and QA engineers who want multi-protocol requests, scripting, CI execution, and agent access without accounts or telemetry; teams needing hosted collaboration or a support contract should look elsewhere.[1][2]

Good fit. Developers, QA engineers, and technical writers who design, test, and document APIs and want their API workspace to behave like source code.[1]

Keep in mind. Teams that rely on hosted shared workspaces with built-in cloud sync, comments, and access controls will not find that model here; collaboration is deliberately file- and Git-based.[1]

Repository review signals: unknown status, stale · Observed October 13, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 13, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

  1. Voiden official homepage

    official · Observed October 13, 2026

    Official homepage presenting the offline Git-native API workspace, plain Markdown .void files, MCP support, runner CLI, and one-click import from Postman, OpenAPI, and Insomnia.

  2. VoidenHQ/voiden GitHub repository and README

    official · Observed October 13, 2026

    Public repository metadata and README: Apache-2.0, 1807 stars, offline Git-native workspace, Electron/TypeScript stack, multi-protocol support, scripting, Stitch runner, headless CLI, MCP support, desktop installers, no accounts or telemetry, and the Coming-from-Postman migration guide.

Yaak

Local-first desktop API client for REST, GraphQL, gRPC, and more

Open sourceMIT

Teams that version API collections in Git and want a client that works fully offline benefit most from Yaak. Its YAML workspaces keep every request diffable and mergeable, and zero-telemetry local execution keeps internal endpoints off vendor infrastructure. Teams that need vendor-hosted shared workspaces or free commercial binaries should choose something else. If a local-first Git-native API workflow fits your team, choose Yaak; if hosted team collaboration is the requirement, Postman remains the incumbent choice.[1][2][3]

Good fit. Privacy-sensitive developers get account-free local execution with zero telemetry, keeping internal endpoints and tokens off vendor infrastructure.[1][2]

Keep in mind. Commercial use of the prebuilt binaries is paid after a 30-day evaluation, so companies that cannot build from source must budget an annual Individual or Business license.[1]

Repository review signals: unknown status, stale · Observed October 13, 2026.

Read project review Official website
Sources and editorial review

Source research. Reviewed on October 13, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.

We have not run or tested this product.

  1. Yaak - The local-first API client

    official · Observed October 13, 2026

    Official homepage: local-first API client from the creator of Insomnia; native macOS/Windows/Linux apps; REST, GraphQL, gRPC, WebSockets, SSE; environments, auth, reusable values; workspaces in Git; import from Postman, Bruno, Insomnia, OpenAPI; install via Brew, download, Winget, Yay.

  2. About Yaak - The API client from the creator of Insomnia

    official · Observed October 13, 2026

    Official about page: Mountain Loop Labs, founded by Insomnia creator Gregory Schier; public launch January 2024; MIT licensed; local-first with zero telemetry and no cloud lock-in; free personal use; source free for personal and commercial use; YAML Git workspaces.

  3. Yaak Pricing

    official · Observed October 13, 2026

    Official pricing: free Personal tier; Individual and Business annual commercial licenses for prebuilt binaries with 30-day evaluation, account-free license keys, and a lifetime fallback version; Business adds invoicing and concierge team onboarding.

Compare Postman alternatives

Known catalogue facts at a glance. Columns with no reviewed values are omitted. “Not reviewed” means unknown, not that a capability is absent.

Known facts for Postman alternatives
ProjectLicense policyHostingDeploymentOfflineEnterprise supportBest fit
HoppscotchMIT · OSI-approvedSelf-hostedNot reviewedNot reviewedNot reviewedNot reviewed
BrunoMIT · OSI-approvedNot fully reviewedeasyYesYesExploring and testing REST and GraphQL APIs; API collections versioned in Git
FirecampAGPL-3.0-only · customManagedeasyNot reviewedYesREST API testing; GraphQL development
HTTPieBSD-3-Clause · OSI-approvedNot fully reviewedeasyYesNot reviewedExploring and testing REST APIs from the terminal; Debugging HTTP servers and web services
InsomniaApache-2.0 · OSI-approvedManagedeasyYesYesDesigning and testing APIs from OpenAPI specs; Automated API tests in CI pipelines
MockoonMIT · OSI-approvedSelf-hosted + ManagedeasyYesYesFrontend developers building against unfinished or unreliable APIs; Developers testing edge cases and error scenarios in a controlled environment
RequestlyAGPL-3.0 · OSI-approvedManagedeasyYesYesAPI development and testing teams; Frontend developers debugging network traffic
ScalarMIT · OSI-approvedSelf-hosted + ManagedeasyYesYesDocumenting OpenAPI-based REST APIs; Replacing collection-based API clients with an OpenAPI-native workflow
VoidenApache-2.0 · OSI-approvedNot fully reviewedNot reviewedYesNot reviewedDevelopers, QA engineers, and technical writers who design, test, and document APIs; Teams that prefer local files and Git over cloud workspaces
YaakMIT · OSI-approvedNot fully reviewedeasyYesYesExploring and testing REST, GraphQL, and gRPC APIs; API collections versioned in Git as YAML workspaces

Before you switch

  • Check that the project covers the workflows and data you need to move.
  • Confirm that the license terms fit how you plan to run, modify, and distribute it.
  • Choose between self-hosting responsibility and a reviewed managed option.
  • Open the project page for repository freshness, review dates, and any unresolved requirements.
About Postman

Postman is where most developers first poke at an API, and it grew from that into documentation, mock servers, monitoring, and team workspaces around shared collections.

Growth came with weight. The desktop client is heavy, an account is effectively required, and collections sync to the vendor's cloud by default, which is a problem when they carry internal endpoints and tokens.

Postman · Free tier, paid from $14/user/month · Checked August 31, 2026

Official website
How this list is ordered

Recommended · Organic catalogue order.

A deterministic editorial score using relationship confidence, category fit, logarithmic popularity, as-of maintenance and freshness, with bounded anomaly quarantine and known-data penalties. Payment is fixed at zero.

Payment does not affect organic ranking. Order is a starting point, not a universal recommendation.

OpenAlternative organic alternatives v4 · version 4

Alternatives to Postman: Open Source and More | OpenSourceAlternatives