Open Source Tools Built with CSS

Lightweight, fast, and feature-rich API client for developers. Test, debug, and document APIs with ease in a clean, modern interface.

Lightweight, fast, and feature-rich API client for developers. Test, debug, and document APIs with ease in a clean, modern interface. It is positioned as an open-source alternative to Postman, Testfully. Primary category: API Clients. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Horilla is a free, open-source HRMS that streamlines HR processes, from recruitment to offboarding, with customizable modules.

Horilla is a free, open-source HRMS that streamlines HR processes, from recruitment to offboarding, with customizable modules. It is positioned as an open-source alternative to Workable, Remote, BambooHR, Greenhouse. Primary category: HR Management Systems (HRMS). Detected stack: JavaScript, NodeJS, CSS, Bash, Docker, npm. Review the imported record before publishing or editing SEO copy.

Open source observability platform unifying session replays, logs, traces, metrics and errors. Fast search, automatic clustering, $0.40/GB pricing.

Open source observability platform unifying session replays, logs, traces, metrics and errors. Fast search, automatic clustering, $0.40/GB pricing. It is positioned as an open-source alternative to DataDog, Tableau, BetterStack, Splunk. Primary category: Performance Monitoring (APM). Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing

A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing. It is positioned as an open-source alternative to Stripe Billing, PayPal Braintree. Primary category: Payment Infrastructure. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

An intelligent note-taking assistant that combines your quick notes with meeting transcripts to create comprehensive, organized meeting summaries auto

An intelligent note-taking assistant that combines your quick notes with meeting transcripts to create comprehensive, organized meeting summaries automatically. It is positioned as an open-source alternative to Granola, Otter.ai, tl;dv, Jamie AI. Primary category: Note-Taking. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Create and send newsletters with complete privacy protection. No tracking, no data collection - just simple, clean email delivery with customizable te

Create and send newsletters with complete privacy protection. No tracking, no data collection - just simple, clean email delivery with customizable templates and archive sites. It is positioned as an open-source alternative to Resend, Mailchimp, Brevo, SendGrid. Primary category: Email Marketing & Newsletters. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Typescript, Docker. Review the imported record before publishing or editing SEO copy.

Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version com

Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026. It is positioned as an open-source alternative to Resend, SendGrid, Mailgun, AWS SES. Primary category: Email Platforms. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Build beautiful, interactive forms with AI assistance. Open-source alternative to Google Forms with unlimited submissions, advanced analytics, and sea

Build beautiful, interactive forms with AI assistance. Open-source alternative to Google Forms with unlimited submissions, advanced analytics, and seamless integrations. It is positioned as an open-source alternative to Google Forms, Tally, Typeform, Jotform. Primary category: Forms & Surveys. Detected stack: JavaScript, NodeJS, CSS, Typescript, Prettier, JSX. Review the imported record before publishing or editing SEO copy.

Back up, organize, search, and browse your personal photo and video library on your own server, with no third-party cloud access.

Back up, organize, search, and browse your personal photo and video library on your own server, with no third-party cloud access. It is positioned as an open-source alternative to Google Photos, Apple Photos. Primary category: Storage. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Open-source solution for effortless data importing, mapping, and validation in web applications

Open-source solution for effortless data importing, mapping, and validation in web applications. Primary category: ETL & Data Integration. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

End-to-end encrypted secret management platform for seamless integration and enhanced security in development workflows.

End-to-end encrypted secret management platform for seamless integration and enhanced security in development workflows. It is positioned as an open-source alternative to Doppler, Keeper. Primary category: Application Security. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Simplify backend processes with event-driven functions, seamless integrations, and powerful debugging tools for developers.

Simplify backend processes with event-driven functions, seamless integrations, and powerful debugging tools for developers. It is positioned as an open-source alternative to Kafka. Primary category: Backend-as-a-Service (BaaS). Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Intuitive API client for REST, GraphQL, and gRPC. Debug, test, and collaborate on APIs with ease across platforms.

Intuitive API client for REST, GraphQL, and gRPC. Debug, test, and collaborate on APIs with ease across platforms. It is positioned as an open-source alternative to Postman, Testfully. Primary category: API Clients. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Instant is a database solution for building real-time and offline-enabled applications, simplifying the development of collaborative products.

Instant is a database solution for building real-time and offline-enabled applications, simplifying the development of collaborative products. It is positioned as an open-source alternative to Supabase, Firebase, Fauna, PlanetScale. Primary category: Backend-as-a-Service (BaaS). Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Open source front-end for YouTube that strips out ads, tracking, and algorithmic distractions while letting you subscribe to channels and manage playl

Open source front-end for YouTube that strips out ads, tracking, and algorithmic distractions while letting you subscribe to channels and manage playlists. It is positioned as an open-source alternative to YouTube. Primary category: Media & Streaming. Detected stack: JavaScript, Github Actions, CSS, Bash, Docker, GitHub. Review the imported record before publishing or editing SEO copy.

Free invoicing software for freelancers and small businesses. Create professional invoices, track expenses, accept online payments, and manage project

Free invoicing software for freelancers and small businesses. Create professional invoices, track expenses, accept online payments, and manage projects without hidden fees. It is positioned as an open-source alternative to Quickbooks, Xero, Bench, Dext. Primary category: Invoicing & Payments. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Typescript, Prettier. Review the imported record before publishing or editing SEO copy.

IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.

IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python. It is positioned as an open-source alternative to Microsoft Excel, Google Sheets. Primary category: Spreadsheets. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Feature-rich terminal replacement for macOS with split panes, search, autocomplete, and extensive customization options for enhanced productivity.

Feature-rich terminal replacement for macOS with split panes, search, autocomplete, and extensive customization options for enhanced productivity. It is positioned as an open-source alternative to Warp, Terminal. Primary category: Terminal Emulators. Detected stack: JavaScript, Github Actions, CSS, Bash, Python, GitHub. Review the imported record before publishing or editing SEO copy.

Jan runs open-source AI models on your own hardware or connects to cloud providers like OpenAI, Anthropic, and Google, keeping your conversations off

Jan runs open-source AI models on your own hardware or connects to cloud providers like OpenAI, Anthropic, and Google, keeping your conversations off third-party servers. It is positioned as an open-source alternative to Claude, Grok, ChatGPT, TypingMind. Primary category: AI Personal Assistants. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Transform your computer interaction with natural voice commands. Dictate 4x faster than typing, control any app hands-free, and boost productivity ins

Transform your computer interaction with natural voice commands. Dictate 4x faster than typing, control any app hands-free, and boost productivity instantly. It is positioned as an open-source alternative to Wispr Flow, Superwhisper, Voiceflow, Aqua Voice. Primary category: AI Personal Assistants. Detected stack: JavaScript, NodeJS, CSS, Bash, Typescript, Eslint. Review the imported record before publishing or editing SEO copy.

Free, open source media server that lets you collect, manage, and stream your personal library to any device, with no fees, tracking, or vendor lock-i

Free, open source media server that lets you collect, manage, and stream your personal library to any device, with no fees, tracking, or vendor lock-in. It is positioned as an open-source alternative to Netflix, Plex, Streamio, Emby. Primary category: Media Servers. Detected stack: Github Actions, CSS, Bash, Docker, Python, Renovate. Review the imported record before publishing or editing SEO copy.

Host encrypted video conferences directly in your browser, deploy on your own servers, or integrate into applications - all with this powerful open so

Host encrypted video conferences directly in your browser, deploy on your own servers, or integrate into applications - all with this powerful open source platform. It is positioned as an open-source alternative to Microsoft Teams, Zoom, Google Meet, Webex. Primary category: Video Conferencing & Virtual Office. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Collect, transform, and sync data across your entire infrastructure with a flexible, code-based approach to data integration.

Collect, transform, and sync data across your entire infrastructure with a flexible, code-based approach to data integration. It is positioned as an open-source alternative to Supermetrics, Segment, Matillion, Fivetran. Primary category: ETL & Data Integration. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Cross-platform note-taking app with end-to-end encryption, Markdown support, web clipping, and sync via Dropbox, OneDrive, or Joplin Cloud.

Cross-platform note-taking app with end-to-end encryption, Markdown support, web clipping, and sync via Dropbox, OneDrive, or Joplin Cloud. It is positioned as an open-source alternative to Obsidian, OneNote, Google Keep, Apple Notes. Primary category: Note-Taking. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Open-source privileged access management solution offering secure, browser-based access to SSH, RDP, Kubernetes, databases and remote applications.

Open-source privileged access management solution offering secure, browser-based access to SSH, RDP, Kubernetes, databases and remote applications. It is positioned as an open-source alternative to Teleport, CyberArk. Primary category: Authentication & SSO. Detected stack: JavaScript, Github Actions, CSS, Bash, Docker, Prettier. Review the imported record before publishing or editing SEO copy.

Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.

Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data. It is positioned as an open-source alternative to Notion, Obsidian, OneNote, Google Keep. Primary category: Note-Taking. Detected stack: JavaScript, NodeJS, CSS, Typescript, Eslint, Prettier. Review the imported record before publishing or editing SEO copy.

Free kanban project management with unlimited boards, lists, and cards. Import Trello boards, collaborate with teams, and self-host for complete contr

Free kanban project management with unlimited boards, lists, and cards. Import Trello boards, collaborate with teams, and self-host for complete control. It is positioned as an open-source alternative to Monday, Jira, ClickUp, Trello. Primary category: Project Management Suites. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Organize projects with intuitive Kanban boards, powered by Supabase backend and Stripe payment processing for complete project management workflow.

Organize projects with intuitive Kanban boards, powered by Supabase backend and Stripe payment processing for complete project management workflow. It is positioned as an open-source alternative to Monday, Jira, ClickUp, Trello. Primary category: Project & Work Management. Detected stack: JavaScript, NodeJS, CSS, Typescript, Docker, Eslint. Review the imported record before publishing or editing SEO copy.

Self-hosted project management platform with visual task management, data privacy, and complete control over customization - built by developers for d

Self-hosted project management platform with visual task management, data privacy, and complete control over customization - built by developers for developers. It is positioned as an open-source alternative to Linear, Monday, Jira, ClickUp. Primary category: Task Management. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Bash, Typescript. Review the imported record before publishing or editing SEO copy.

Kanri is a free, open-source personal Kanban app that works offline, offering a modern and simple experience while respecting your privacy.

Kanri is a free, open-source personal Kanban app that works offline, offering a modern and simple experience while respecting your privacy. It is positioned as an open-source alternative to Monday, Jira, ClickUp, Trello. Primary category: Task Management. Detected stack: JavaScript, Github Actions, NodeJS, CSS, Typescript, Eslint. Review the imported record before publishing or editing SEO copy.