Browse Open Source Software Alternatives

Read it later app that collects articles, newsletters, PDFs and videos in one queue, with highlighting and notes that sync back into Readwise for later review.

Chat interface for large language models where you supply your own provider API keys, adding prompt libraries, plugins and folders for people who want one window across models.

Personal budgeting app that links bank accounts, sorts spending into categories and shows how much is safe to spend after bills, savings goals and recurring subscriptions.

Bot detection widget that verifies visitors are human without puzzles, embedded on forms and sign up pages to block automated abuse.

Database IDE for writing SQL, browsing schemas, editing tables and moving data across many engines, aimed at developers and database administrators.

Password manager for storing logins, passkeys, cards and secrets, syncing them across browsers and devices for individuals, families and company teams.

Feedback and feature request tracking for product teams, collecting user ideas, votes and roadmap updates in a public or private portal.

Code editor with an agent that reads the repository, edits files and runs commands, built by Codeium and now shipped by Cognition as the Devin desktop app.

Bot detection service that shows image challenges or invisible checks on forms and logins, letting site owners block automated traffic.

Dictation app for macOS and iOS that turns speech into formatted text in any application, aware of on screen context, used by developers and writers who prefer talking to typing.

Database administration and development client for MySQL, PostgreSQL, Oracle, SQL Server and MongoDB, with visual query building, data modeling and synchronization.

Managed data pipelines that replicate records from business applications and databases into a warehouse and keep them in sync, for analytics teams.

Workflow automation platform where developers connect APIs and run custom code steps triggered by events, webhooks or schedules.

Feature flag and experimentation service that ties every rollout to product metrics, used by engineering and growth teams running A/B tests and gradual releases.

General purpose AI agent that plans and carries out multi step tasks in its own cloud browser and shell, producing research reports, spreadsheets, slides and small websites.

API client and testing platform for REST and GraphQL, with no code test flows, scheduled monitors and CI runs, used by backend and QA teams replacing Postman.

Cloud hosting service that deploys web services, static sites, cron jobs and managed Postgres from a Git repository, used by small teams who want deploys without managing servers.

Hosted observability stack from Grafana Labs bundling dashboards, Prometheus metrics, Loki logs and Tempo traces, used by engineering teams who want the stack run for them.

Zero trust network access and security service that connects users to internal applications and filters internet traffic without a traditional VPN.

Research assistant that grounds its answers in documents you upload, producing summaries, notes and audio overviews for students, researchers and writers.

Bot detection service that screens form submissions and logins, scoring visitor behavior or posing challenges, used by site owners to block automated abuse.

Database client for macOS, Windows and Linux, browsing and editing tables, running queries and managing connections across many database engines.

Object storage service for keeping files, backups and media at scale, served over HTTP with per object permissions, versioning and lifecycle rules.

Dictation tool that turns speech into cleaned up text inside any application, aimed at people who prefer writing by voice.

Voice dictation app for macOS that transcribes speech into text on the device and inserts it into any application.

Work management platform where teams build boards for projects, tasks and workflows, with views, automations and dashboards across marketing, sales and operations.

Authentication and user management for web applications, providing prebuilt sign in components, sessions, multi factor authentication and organization support.

Transactional email delivery service for applications, sending receipts, password resets and notifications with delivery tracking.

Feedback tool where product teams collect feature requests, let users vote on them and publish a public roadmap and changelog.

Zero trust remote access service that connects employees to private company resources without exposing a full corporate network.

Browser based diagramming for flowcharts, architecture maps and org charts, with real time collaboration for engineering, IT and business teams.

Email marketing and automation for small businesses, covering audience lists, campaign design, landing pages and reporting on opens, clicks and revenue.

Subscription billing service handling recurring plans, usage-based pricing, invoices, proration and failed payment recovery on top of Stripe payments.

Transactional and marketing email API for developers, with templates written in React and delivery analytics.

Password manager and secrets vault for storing logins, passkeys and files, with sharing, admin policies and privileged access controls used by businesses and their IT teams.