Browse Open Source Alternatives

1Password is a cloud-based password manager and digital vault for storing passwords, payment cards, and secure notes across devices.

LiveKit is an open-source WebRTC platform for real-time audio, video, and livestreaming that can be self-hosted instead of Agora's cloud API.

Airtable's per-seat pricing and closed storage push growing teams toward these open-source, self-hostable spreadsheet-database alternatives.

The best open-source alternatives to Algolia, compared by hosting cost, hybrid search, and typo tolerance out of the box.

Amazon Aurora is a managed relational database service on AWS, compatible with MySQL and PostgreSQL, built for cloud-scale workloads.

Amazon Redshift is a managed cloud data warehouse on AWS for running large-scale SQL analytics on structured data.

Open-source Amplitude alternatives track product usage, funnels, and retention on infrastructure you host instead of a per-event SaaS bill.

Open-source Asana alternatives manage tasks and projects on servers you control, without per-seat SaaS pricing.

Auth0 charges per monthly active user and keeps core identity data in its cloud; these open-source options let you self-host it instead.

Authy is a mobile app by Twilio that generates two-factor authentication codes and syncs them across devices.

AWS Amplify ties every project to AWS billing and services; Appwrite is a self-hosted backend platform with no cloud lock-in.

SuperTokens is a self-hosted auth platform with session management and social login, free for unlimited users unlike Cognito's per-MAU cost.

AWS Secrets Manager is a managed AWS service for storing, rotating, and retrieving database credentials, API keys, and other secrets.

Azure Key Vault is a Microsoft cloud service for storing and managing secrets, encryption keys, and certificates.

The best open-source alternative to Better Stack, compared on self-hosting, status pages, and monitoring cost.

BigCommerce hosts stores on its own platform with revenue-based tiers; Saleor is an open-source, headless GraphQL commerce engine.

Bitly charges monthly for link volume and custom domains; Dub is an open-source link management platform you can self-host for free.

Bitwarden is a password manager that stores logins, cards, and identities in an encrypted vault synced across devices.

Brevo charges by monthly email volume and stores subscriber data on its servers; listmonk is a free, self-hosted mailing list manager.

The best open-source alternative to Bugsnag, compared on self-hosting, language coverage, and pricing.

Calendly runs entirely on its own servers with per-seat pricing; cal.diy offers self-hosted booking pages, calendar sync, and an open API instead.

The best open-source alternatives to ChatGPT, compared by local model support, self-hosting, and multi-provider chat.

ClickUp bundles dozens of features behind tiered pricing; Leantime is a free, open-source project management tool for lean teams.

The best open-source alternatives to commercetools, compared by API design, hosting cost, and TypeScript versus Python stacks.

Confluence ties documentation to Atlassian's per-user pricing and cloud; these open-source wikis let teams self-host their knowledge base.

The best open-source alternatives to Contentful, compared by data model, hosting cost, and how content APIs are generated.

Novu is an open-source notification platform with 50+ providers across email, SMS, push, and in-app channels, self-hostable under MIT.

CrowdStrike is a cloud-based endpoint security platform offering threat detection, antivirus, and incident response for organizations.

The best open-source alternative to Daily, compared on self-hosting, scalability, and WebRTC infrastructure control.

Datadog's per-host, per-metric pricing scales sharply with infrastructure size; these open-source tools let teams self-host observability.

The best open-source alternative to DocuSign, compared on self-hosting, API access, and per-envelope pricing.

DocuWare is a cloud and on-premise document management and workflow automation platform for digitizing business documents.

Infisical is an open-source secrets manager with an MIT-licensed self-hosted core, giving teams control over where credentials are stored.

Dropbox is a cloud file storage and syncing service for backing up, sharing, and accessing files across devices.

Typesense is a lightweight, typo-tolerant search engine built for instant search, a simpler alternative to running the full Elastic Stack.

Quickwit is a Rust-based search engine built for logs and traces that queries object storage directly, cutting cost versus Elasticsearch.

The best open-source alternatives to Evernote, compared by encryption, sync options, and markdown versus rich-text editing.

Figma is a cloud-based interface design tool for creating UI mockups, prototypes, and collaborative whiteboards.

Open-source Firebase alternatives replace Google's proprietary backend with self-hosted databases, auth, storage, and realtime sync you control.

Firebase Authentication ties user data to Google's platform; SuperTokens is a self-hosted, open source alternative with no vendor lock-in.

Airbyte is an open-source ELT platform with 400+ connectors that can run self-hosted on Docker or Kubernetes instead of Fivetran's pricing.

FreshBooks bills per client on a hosted invoicing plan; Invoice Ninja is a self-hostable open source alternative with no client limits.

Freshdesk charges per agent seat with feature-gated tiers; Zammad is a self-hosted, open-source helpdesk with no per-agent licensing.

GitHub is a cloud-based Git hosting platform for source code, offering pull requests, issue tracking, and CI/CD pipelines.

GitLab is a cloud and self-hosted DevOps platform combining Git repository hosting with CI/CD, issue tracking, and project management.

Open-source Google Analytics alternatives track website visitors without cookies or third-party data sharing, hosted on your own server.

Google BigQuery is a fully managed, serverless cloud data warehouse for running SQL analytics on large datasets.

Google Cloud Spanner is a fully managed, globally distributed relational database service built for horizontal scalability.

Google Drive is Google's cloud file storage and collaboration service for storing, sharing, and editing documents.

The best open-source alternative to Google Keep, compared on self-hosting, markdown support, and data ownership.

Open-source Google Meet alternatives run WebRTC video conferencing on your own servers, without per-user Workspace licensing.

Google Photos is Google's cloud service for storing, organizing, and backing up photos and videos with automatic tagging.

The best open-source alternative to HashiCorp Vault, compared on setup complexity, self-hosting, and cost.

Help Scout charges per user on a hosted help desk; FreeScout is a free, self-hosted shared inbox with unlimited mailboxes and agents.

Open-source HubSpot alternatives run marketing automation, CRM, and support workflows on infrastructure you own instead of a per-contact bill.

Huginn is a self-hosted, agent-based automation server that replicates IFTTT-style workflows with more scripting control and no subscription.

The best open-source alternative to Intercom, compared on pricing, self-hosting, and omnichannel support.

Jira's per-user licensing and configuration overhead push teams toward these open-source project management tools, self-hosted for free.

Ghostfolio is a free, self-hosted wealth tracker under AGPL-3.0 that logs assets manually or via CSV instead of syncing brokerage accounts.

LastPass is a cloud-based password manager for storing and autofilling logins, notes, and payment information across devices.

LaunchDarkly bills per seat and monthly tracked users; these open-source feature flag platforms let teams self-host flag management.

Linear's polish comes with a subscription and no self-hosted option; these open-source alternatives cover similar ground without the lock-in.

The best open-source alternatives to Looker, compared by dbt integration, self-hosting cost, and dashboard sharing.

Mailchimp bills by subscriber count and locks lists into its platform; listmonk is self-hosted email marketing with no per-subscriber fee.

Make (formerly Integromat) is a visual, cloud-based automation platform for connecting apps and building multi-step workflows without code.

The best open-source alternative to Marketo, compared on self-hosting, email automation, and licensing cost.

Medium controls distribution and paywalls content inside its own membership program; Ghost is a self-hosted publishing platform you fully own.

Microsoft OneDrive is Microsoft's cloud storage and file-sync service, bundled with Microsoft 365 for storing, sharing, and syncing files.

Microsoft Power BI is a business intelligence platform for building interactive dashboards and reports from company data.

Microsoft SQL Server is a proprietary relational database management system used for transactional and analytical workloads.

Microsoft Teams is Microsoft's workplace chat, video meeting, and collaboration app, bundled with Microsoft 365.

Midjourney is a commercial AI image generation service, accessed via Discord and the web, that creates images from text prompts.

Miro is a cloud-based online whiteboard for visual collaboration, brainstorming, and diagramming used by remote teams.

Mixpanel's event-based pricing climbs with usage; these open-source analytics platforms let teams self-host product analytics instead.

Monday.com bills per seat for hosted project boards; Plane is a self-hostable alternative built around issues, cycles, and roadmaps.

Open-source New Relic alternatives collect metrics, logs, and traces on infrastructure you host, built on OpenTelemetry instead of a closed pipeline.

Open-source Notion alternatives cover project boards, team wikis, and personal notes without locking your content into a proprietary format.

Open-source Okta alternatives handle single sign-on, MFA, and identity management on infrastructure you host and control yourself.

OneSignal centralizes push and messaging on its own platform with usage caps; Novu is a self-hosted, open source notification infrastructure.

Optimizely prices experimentation by monthly tracked users on a hosted platform; GrowthBook is open source and runs on your warehouse.

Oracle Database is a proprietary enterprise relational database management system known for scalability and advanced enterprise features.

Pinecone is a managed vector database billed by usage; Typesense adds self-hosted vector and hybrid search without per-query fees.

Pingdom prices uptime monitoring per check on a hosted dashboard; Uptime Kuma is a free, self-hosted monitor in one container.

Plex is a media server platform for organizing and streaming personal video, music, and photo libraries across devices.

Qualtrics is enterprise survey software with per-seat licensing; Formbricks is an open-source, self-hosted survey and experience platform.

Qualys is a cloud-based vulnerability management and security compliance platform used to scan networks and applications for weaknesses.

The best open-source alternatives to QuickBooks, compared by licensing, invoicing features, and self-hosted accounting.

The best open-source alternative to Quicken, compared on self-hosting, double-entry accounting, and cost.

The best open-source alternatives to Retool, compared by database connectors, self-hosting effort, and how much code you write.

Roam Research is a note-taking app built around bidirectional linking and a networked, outline-based structure for personal knowledge management.

Rollbar prices error tracking by monthly event volume on its hosted platform; Sentry is open source and self-hostable with unlimited events.

The best open-source alternatives to Salesforce, comparing CRM pipeline tools and support-desk tools for Service Cloud.

Open-source Sanity alternatives give you a headless CMS backed by a database you control instead of a hosted content platform.

PostHog pairs its analytics platform with a CDP-style pipeline, letting self-hosted teams route events without Segment's per-user pricing.

The best open-source alternative to Sharesight, compared on self-hosting, asset coverage, and subscription cost.

Shopify takes a cut of every sale and limits backend customization; these open-source commerce platforms let merchants own the stack.

Sketch is Mac-only design software sold per license; Penpot is a free, open-source, browser-based design and prototyping tool.

Slack is a cloud-based team messaging and collaboration app organized around channels, direct messages, and app integrations.

SmartThings is Samsung's cloud-connected smart home platform for controlling and automating connected devices from one app.

Snowflake is a cloud-based data warehouse platform for storing and analyzing large volumes of structured and semi-structured data.

Snyk is a cloud-based platform for finding and fixing security vulnerabilities in open-source dependencies, containers, and code.

Split charges per monthly tracked user for feature flag management; Unleash is a self-hostable, open source feature flag alternative.

Splunk is a platform for searching, monitoring, and analyzing machine-generated log data, commonly used for IT operations and security.

Spotify streams a licensed catalog through a paid subscription; Navidrome self-hosts and streams a personal music library instead.

Sublime Text is a proprietary, lightweight, cross-platform source code editor known for speed and a large plugin ecosystem.

Substack takes a cut of paid subscription revenue and hosts your list; Ghost is open source and self-hosted, with no revenue cut.

SurveyMonkey hosts surveys on a per-response paid plan; Formbricks is a self-hostable survey and experience management alternative.

Tableau is a commercial business intelligence platform for creating interactive data visualizations and dashboards.

The best open-source alternative to Temporal, compared on workflow orchestration, self-hosting, and setup effort.

Tenable Nessus is a widely used commercial vulnerability scanner for identifying security weaknesses in networks and systems.

Todoist syncs tasks through a hosted subscription with feature limits; Vikunja is a self-hostable, open source task manager instead.

The best open-source alternative to Trello, compared on self-hosting, board views, and per-seat cost.

Owncast is a self-hosted live streaming server that replaces Twitch's platform with a single instance a creator fully owns and controls.

Open-source Typeform alternatives build branching forms and surveys with responses stored on your own server, not a third-party vendor.

Uptime Kuma is a self-hosted uptime monitor with a real-time dashboard, over 30 monitor types, and no per-monitor UptimeRobot-style pricing.

Wirecast is a paid live video production and streaming software for creating multi-camera broadcasts and switching between sources.

The best open-source alternative to Xero, compared on self-hosting, invoicing, and multi-company support.

XSplit is a paid live streaming and video production software for broadcasting gameplay, presentations, and multi-source video.

YNAB requires an ongoing subscription and keeps your budget data in its cloud; these open-source apps manage finances locally instead.

YouTube's recommendation algorithm and ad model shape what gets seen; PeerTube is federated, open-source video hosting with no owner.

The best open-source alternatives to Zapier, compared by pricing model, self-hosting, and AI agent or MCP support.

The best open-source alternatives to Zendesk, compared by channel coverage, self-hosting, and ticketing versus omnichannel chat.

Zoom's tiered plans cap meeting length and participant count; these open-source video platforms let organizations self-host video calls.