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OpenSourceAlternatives

Tag

cloud

59 catalogue entries use this topic; each Project's license policy is labeled separately.

1Password

1Password

Password and secret management for people and teams

CompanyAgileBits
Since2006
PricingPaid

1Password is the credential manager most often recommended to people who will not tolerate friction. The apps are good on every platform, sharing within a family or team is comprehensible, and the security model has held up under scrutiny.

Airtable

Airtable

Spreadsheet interface over a real relational database

CompanyAirtable
Since2015
PricingFreemium

Airtable let non-engineers build relational data models without knowing they were doing it. Linked records, typed fields, and multiple views over one table cover an enormous amount of internal tooling that would otherwise be a spreadsheet or a small application.

Algolia

Algolia

Hosted search with millisecond responses and ranking control

CompanyAlgolia
Since2012
PricingFreemium

Algolia is search as a managed service, tuned so hard for latency that typing into a search box feels like filtering a local list. Typo tolerance, synonyms, and merchandising rules are all configurable without touching the index code.

Amplitude

Amplitude

Product analytics with experimentation attached

CompanyAmplitude
Since2014
PricingFreemium

Amplitude covers similar ground to Mixpanel with a stronger pull towards experimentation and governance. Event taxonomies can be enforced, which matters once more than one team is instrumenting the same product.

Apple Music

Apple Music

Music streaming with lossless audio and no free tier

CompanyApple
Since2015
PricingFreemium

Apple Music ships lossless and spatial audio at no extra cost, which is the clearest technical differentiator in the category. Editorial curation is stronger than the algorithmic competition; algorithmic discovery is weaker.

Alternative tospotify
Apple Photos

Apple Photos

Photo library synced through iCloud across Apple devices

CompanyApple
Since2015
PricingPaid

Apple Photos does most of its analysis on the device rather than in the cloud, so face grouping and object search work without the library being readable by the vendor. Sync happens through iCloud, and the library is a first party part of the operating system rather than an app you install.

Alternative togoogle photos
Asana

Asana

Work management for teams that are not only engineers

CompanyAsana
Since2012
PricingFreemium

Asana is aimed at the coordination work around delivery rather than at engineering tickets: campaigns, launches, onboarding, and the dependencies between them. Timeline and workload views are the parts teams adopt first.

Alternative tojira
Auth0

Auth0

Hosted identity covering login, SSO, and multi-factor

CompanyOkta
Since2013
PricingFreemium

Auth0 made outsourcing authentication respectable. Social providers, enterprise SSO, multi-factor, and the awkward edges of OAuth arrive already handled, with rules and actions for the parts that are specific to your product.

Browserbase

BrowserbaseAI

Hosted headless browser infrastructure for agents

CompanyBrowserbase
Since2024
PricingFreemium

Browserbase runs the browsers so you do not have to. Sessions, proxies, captcha handling, and stealth configuration are managed, which removes the least interesting and most fragile part of building anything that scrapes or automates the web.

Buffer

Buffer

Social media scheduling with a deliberately small surface

CompanyBuffer
Since2010
PricingFreemium

Buffer schedules posts and reports on them, and has resisted becoming a suite for over a decade. That restraint is why it stays usable for a one person marketing function.

Calendly

Calendly

Booking links that read your real availability

CompanyCalendly
Since2013
PricingFreemium

Calendly removed an email thread from every meeting anyone arranges with someone outside their company. Share a link, the other person picks from real availability, and both calendars update.

ChatGPT

ChatGPTAI

OpenAI's assistant and the interface that set the pattern

CompanyOpenAI
Since2022
PricingFreemium

ChatGPT is the product that made conversational assistants ordinary. Beyond the chat box it now covers file analysis, image generation, web browsing, voice, and custom assistants sharing one account.

Claude

ClaudeAI

Anthropic's assistant, strongest on long documents and code

CompanyAnthropic
Since2023
PricingFreemium

Claude is positioned around careful reasoning over long inputs. The large context window makes whole-repository and long-document work practical in a way that shorter context assistants cannot match.

Alternative tochatgpt
Confluence

Confluence

Enterprise wiki wired into Atlassian's tooling

CompanyAtlassian
Since2004
PricingFreemium

Confluence is where large organisations put documentation that has to outlive the people who wrote it. Spaces, permissions, page trees, and approval workflows are built for scale and governance rather than for speed.

Alternative tonotion
Contentful

Contentful

Headless content management delivered over APIs

CompanyContentful
Since2013
PricingFreemium

Contentful separated content from presentation properly and early. Editors work with structured content models, and any number of front ends consume the same entries through an API.

Crowdin

Crowdin

Localisation management for software and content

CompanyCrowdin
Since2009
PricingFreemium

Crowdin coordinates the people, files, and machine translation involved in shipping a product in more than one language. Source strings sync from a repository, translators work in the web editor, and translated files come back on merge.

Datadog

Datadog

Infrastructure monitoring, logs, and tracing in one platform

CompanyDatadog
Since2010
PricingPaid

Datadog's value is correlation. A latency spike on a dashboard, the traces behind it, and the logs from the affected hosts are one or two clicks apart, which is the difference between a ten minute incident and an hour.

Discord

Discord

Voice, video, and text communities organised into servers

CompanyDiscord
Since2015
PricingFreemium

Discord was built for people who wanted to talk while doing something else, and that origin still shapes it. Persistent voice rooms you drop into, rather than scheduled calls, is a genuinely different model from workplace chat.

Alternative toslack
DocuSign

DocuSign

Electronic signature and agreement workflow

CompanyDocusign
Since2003
PricingPaid

DocuSign is the name that makes a signature request unremarkable to the person receiving it, which is most of the value. Recipients already know what the email is and how to complete it.

Dropbox

Dropbox

File sync and sharing across devices and teams

CompanyDropbox
Since2008
PricingPaid

Dropbox made file sync boring in the best sense: a folder that is the same everywhere, with conflict handling that mostly does the right thing. Two decades on, the sync engine is still the part competitors struggle to match.

Figma

Figma

Collaborative interface design in the browser

CompanyFigma
Since2016
PricingFreemium

Figma moved interface design out of single-user desktop files and into a shared document, and the industry reorganised around it. Multiplayer editing, comments in context, and a link that always shows the current state changed how design and engineering hand work to each other.

Firebase

Firebase

Google's application backend for mobile and web

CompanyGoogle
Since2012
PricingFree

Firebase gets a product to users faster than almost anything else. Authentication, a realtime document database, storage, hosting, and functions arrive already wired together, with client SDKs that handle offline state.

GitHub Copilot

GitHub CopilotAI

AI completion and chat inside the editor

CompanyGitHub
Since2021
PricingFreemium

Copilot put model assisted completion in front of a very large number of developers first, and inline suggestion in the editor remains the interaction most people mean by AI coding.

Gmail

Gmail

Google's email client and the inbox most people mean

CompanyGoogle
Since2004
PricingFreemium

Gmail's search is still the reason to use it. Conversation threading, effectively unlimited retention on paid plans, and spam filtering that most self-hosted setups cannot match make it the default even for people uncomfortable with the arrangement.

Google Analytics

Google Analytics

Web and product analytics tied to Google's ad stack

CompanyGoogle
Since2005
PricingFreemium

Google Analytics is free at the point of use because the data feeds an advertising business. For sites that advertise through Google, that integration is the entire value: audiences built here are usable directly in campaigns.

Google Assistant

Google Assistant

Voice control for smart home devices and routines

CompanyGoogle
Since2016
PricingFree

Google Assistant is the voice layer most smart home hardware supports first. Routines, broadcast messages, and device groups work across a very wide range of manufacturers with minimal setup.

Google Drive

Google Drive

Storage and document collaboration inside Workspace

CompanyGoogle
Since2012
PricingPaid

Google Drive is storage with an office suite attached, and the suite is the reason most organisations are on it. Docs, Sheets, and Slides collaborate in real time well enough that the underlying file storage barely gets thought about.

Alternative todropbox
Google Photos

Google Photos

Cloud photo library with automatic backup and search

CompanyGoogle
Since2015
PricingPaid

Google Photos backs up everything a phone takes and then makes it findable. Search understands objects, places, and people without any tagging, and the timeline handles libraries in the hundreds of thousands without stalling.

HubSpot

HubSpot

CRM with marketing and support attached

CompanyHubSpot
Since2006
PricingFreemium

HubSpot's free CRM is a genuine product rather than a trial, and that is the strategy: get the contact database in place, then sell the marketing, sales, and service hubs around it.

Alternative tosalesforce
Intercom

Intercom

Customer messaging combining chat, help centre, and bots

CompanyIntercom
Since2011
PricingPaid

Intercom put support, onboarding, and product messaging into one thread per customer. The messenger in the corner of a product is close to a genre convention now, and Intercom largely defined it.

Jira

Jira

Configurable issue tracking and agile planning at scale

CompanyAtlassian
Since2002
PricingFreemium

Jira can model almost any process an organisation has, which is both why it survives in large companies and why it is disliked in small ones. Workflows, fields, screens, and permission schemes are all configurable, and each configuration is a decision someone has to maintain.

LastPass

LastPass

Browser-first password manager with a long history

CompanyLastPass
Since2008
PricingFreemium

LastPass popularised the browser based password manager and for years was the default recommendation for people moving off reused passwords.

Alternative to1password
Linear

Linear

Issue tracking built around speed and opinionated defaults

CompanyLinear
Since2019
PricingFreemium

Linear is fast in a way that changes behaviour. Keyboard navigation, instant sync, and a deliberately narrow feature set mean issues actually get filed, which is the hard part of any tracker.

Mailchimp

Mailchimp

Marketing email, audiences, and campaign reporting

CompanyIntuit
Since2001
PricingFreemium

Mailchimp made email marketing approachable for people who are not marketers. The editor, the templates, and the reporting are all pitched at a small business owner rather than at a growth team.

Microsoft Teams

Microsoft Teams

Chat, calls, and files bundled into Microsoft 365

CompanyMicrosoft
Since2017
PricingFreemium

Teams wins on bundling rather than on craft. If an organisation already pays for Microsoft 365, Teams arrives at no additional cost with identity, files, and calendar already wired together.

Alternative toslack
Miro

Miro

Infinite whiteboard for workshops and planning

CompanyMiro
Since2011
PricingFreemium

Miro is the canvas most distributed teams reach for when the work is thinking rather than producing: retrospectives, service maps, story mapping, and anything else that used to need a wall and sticky notes.

Alternative tofigma
Mixpanel

Mixpanel

Product analytics built around events and cohorts

CompanyMixpanel
Since2009
PricingFreemium

Mixpanel answers behavioural questions rather than traffic ones: which sequence of actions precedes retention, where a funnel leaks, and how a cohort from March differs from one from June.

Alternative togoogle analytics
monday.com

monday.com

Colourful work operating system for cross-functional teams

Companymonday.com
Since2014
PricingFreemium

monday.com presents work as configurable boards with strongly typed columns, then layers dashboards and automations on top. It is aimed at operations, marketing, and sales teams that want structure without a database.

Alternative toasana
New Relic

New Relic

Application performance monitoring with usage based pricing

CompanyNew Relic
Since2008
PricingFree

New Relic was the application performance monitoring product for a generation of web applications, and its repricing to per-user plus per-gigabyte was an explicit attempt to answer the complaint about host based billing.

Alternative todatadog
Notion

Notion

Documents, databases, and project tracking in one workspace

CompanyNotion Labs
Since2016
PricingFreemium

Notion's insight was that a document and a database can be the same object. A page can be prose, a table, a board, or all three, and the same records can be viewed differently by different teams without duplication.

Okta

Okta

Workforce identity and access management for enterprises

CompanyOkta
Since2009
PricingPaid

Okta is aimed at employee identity rather than customer identity: single sign-on across hundreds of business applications, lifecycle provisioning tied to a HR system, and the access reviews auditors ask for.

Alternative toauth0
Postman

Postman

API client and collaboration platform

CompanyPostman
Since2012
PricingFreemium

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.

Retool

Retool

Internal tool builder assembled from components and queries

CompanyRetool
Since2017
PricingFreemium

Retool exists because internal admin panels are important, tedious, and never prioritised. It connects to databases and APIs directly and puts a drag and drop interface over them, so an operations tool takes an afternoon rather than a sprint.

Salesforce

Salesforce

Enterprise CRM and the platform built around it

CompanySalesforce
Since1999
PricingPaid

Salesforce is less a product than a platform with a CRM at the centre. Objects, fields, validation, and automation are all configurable, and an entire consulting industry exists to configure them.

SendGrid

SendGrid

Transactional and marketing email delivery

CompanyTwilio
Since2009
PricingFreemium

SendGrid handles the part of email nobody wants to own: reputation, authentication, bounce processing, and the endless negotiation with inbox providers about whether your mail is wanted.

Alternative totwilio
Sentry

Sentry

Error tracking and performance monitoring for applications

CompanyFunctional Software
Since2012
PricingFreemium

Sentry is the tool most teams install first and remove last. An unhandled exception arrives with a stack trace, the release that introduced it, the users affected, and the breadcrumbs leading up to it.

Shopify

Shopify

Hosted commerce covering storefront, checkout, and payments

CompanyShopify
Since2006
PricingPaid

Shopify's real product is checkout. Conversion on a Shopify checkout is high enough, and the payment, tax, and fraud handling behind it complete enough, that most merchants should think very hard before replacing it.

Slack

Slack

Channel based team messaging with a large integration ecosystem

CompanySalesforce
Since2013
PricingFreemium

Slack replaced internal email for a generation of companies by making conversation searchable and public by default. Channels, threads, and a very large app directory are the shape most team chat now copies.

Spotify

Spotify

Catalogue music streaming with algorithmic discovery

CompanySpotify
Since2008
PricingFreemium

Spotify's advantage is not the catalogue, which is broadly the same everywhere, but the recommendation layer on top of it. Discover Weekly and the radio features remain the reason many people stay.

Tidal

Tidal

Streaming aimed at audio quality and artist payout

CompanyBlock
Since2014
PricingPaid

Tidal competes on two things the larger services do not lead with: high resolution audio formats, and a payout model that directs a share of a subscription to the artists that subscriber actually listened to.

Alternative tospotify
Trello

Trello

Kanban boards simple enough that people actually use them

CompanyAtlassian
Since2011
PricingFreemium

Trello is a board, a list, and a card, and for a very long time that was all. The restraint is why it spread beyond software teams to weddings, house moves, and editorial calendars.

Alternative toasana
Twilio

Twilio

APIs for SMS, voice, and verification at scale

CompanyTwilio
Since2008
PricingPaid

Twilio turned telecommunications into an HTTP request, and the abstraction held. Sending a message to a phone anywhere in the world became a few lines of code rather than a carrier negotiation.

Typeform

Typeform

Conversational forms that ask one question at a time

CompanyTypeform
Since2012
PricingFreemium

Typeform's premise is that a form which asks one question at a time gets finished more often than a wall of fields. For consumer facing surveys and lead capture that holds up, and completion rates are the number it sells on.

Vanta

Vanta

Compliance automation for SOC 2, ISO 27001, and friends

CompanyVanta
Since2018
PricingPaid

Vanta turned compliance from a consulting engagement into a software subscription. It connects to cloud accounts, identity providers, and code hosting, then continuously checks controls and collects the evidence an auditor will ask for.

Wispr Flow

Wispr FlowAI

AI dictation that cleans up speech as you talk

CompanyWispr
Since2024
PricingFreemium

Wispr Flow is dictation that accounts for how people actually speak. False starts, filler, and self-correction are removed, and the output is punctuated text rather than a transcript.

YouTube Music

YouTube Music

Streaming backed by YouTube's catalogue of everything

CompanyGoogle
Since2015
PricingFreemium

YouTube Music reaches material no licensed catalogue contains: live sets, remixes, covers, and regional uploads that never had a commercial release. For anyone whose listening goes past the mainstream, that coverage is decisive.

Alternative tospotify
Zapier

Zapier

Hosted automation connecting thousands of applications

CompanyZapier
Since2011
PricingFreemium

Zapier's moat is the integration catalogue. Almost anything with an API is already connected, maintained by someone else, and works without a developer, which is worth a great deal to teams with no engineering capacity to spare.

Zendesk

Zendesk

Ticketing and help desk for support organisations

CompanyZendesk
Since2007
PricingPaid

Zendesk is built for support as a function with headcount, shifts, and service level agreements, rather than for a founder answering email. Routing, macros, and SLA policies are the substance of it.

Alternative tointercom
Zoom

Zoom

Video meetings that hold up on a bad connection

CompanyZoom Communications
Since2013
PricingFreemium

Zoom won on the least glamorous quality possible: calls connected, and kept working on poor networks when competitors did not. Everything else it has added sits on top of that reliability.