Fast, easy and reliable testing for anything that runs in a browser.
- cypress
- end-to-end-testing
- angular-testing-library
- component-testing
Repository Index
47,133 repositories indexed
1–24 of 39 · Most stars
The local-first database that runs on every JS runtime and replicates with your existing backend - no vendor, no lock-in - https://rxdb.info/
Open source observability platform for logs, metrics, traces, RUM (web, android, ios), Session replay, pipelines, SLO and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.
A beautiful replacement for JavaScript's "alert"
- modal
- sweetalert
- javascript
- popup
Local, open-source AI app builder for power users ✨ v0 / Lovable / Replit / Bolt alternative 🌟 Star if you like it!
- ai-app-builder
- bolt
- lovable
- v0
record and replay the web
- session-replay
- recorder
- logrocket
- fullstory
Visualize any GitHub codebase: free interactive architecture diagrams and one-minute explainer videos. Replace 'hub' with 'diagram' in any GitHub URL.
DevTools for Redux with hot reloading, action replay, and customizable UI
TypeScript execution and REPL for node.js
Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product.
Replace port numbers with stable, named local URLs. For humans and agents.
This is a Next.js, Tailwind CSS blogging starter template. Comes out of the box configured with the latest technologies to make technical writing a breeze. Easily configurable and customizable. Perfect as a replacement to existing Jekyll and Hugo individual blogs.
- nextjs
- tailwind-css
- mdx
- demo-blog
The agent platform built on sync.
- elixir
- postgres
- crdts
- crdt
Claude Code plugin that replaces the compaction summary with Jev decisions: every tool call and result is scored in one fast request, stale ones are dropped or truncated, everything kept stays verbatim.
(Replaces Next.js/Nuxt) 🔨 Build mission-critical applications with stability and development freedom.
:atom: Run code interactively, inspect data, and plot. All the power of Jupyter kernels, inside your favorite text editor.
- data-science
- jupyter
- ipython
- repl
Deepnote is a drop-in replacement for Jupyter with an AI-first design, sleek UI, new blocks, and native data integrations. Use Python, R, and SQL locally in your favorite IDE, then scale to Deepnote cloud for real-time collaboration, Deepnote agent, and deployable data apps. https://deepnote.com/
🦄 0-legacy, tiny & fast web framework as a replacement of Express
- web
- webframework
- nodejs
- javascript
Local AI song generator with an editable score — YuE2 on your GPU: full songs with vocals, sheet music, covers, exact replay. Native Windows app, no Python, installer with auto-update.
- abc-notation
- ai-music
- covers
- cuda
OpenDota: Open source Dota 2 data platform with automated replay parsing
- dota
- data
- api
- javascript
A reactive atomic state engine for React(including React 18) and all React like, carrying dependency collection feature, supporting fine-grained updates.
- concent
- react
- state-management
- state
GenUI for DeepSeek Harness: interactive UI components rendered inline in assistant replies via the dsh-ui fence — layout, charts, plots, forms, quizzes, mermaid, 3D scenes, and an action event loop back to the model. Ships the fence-teaching host plugin, the browser renderer (client half), and the genui skill.
Multiplayer sessions for Claude Code. Share a link, work together live, and review the same replies, tools and previews.
- claude-code
- claude-code-plugin
- collaboration
- multiplayer
An open-source read-along document reader server with high-quality TTS options, synchronized highlighting, and audiobook export for EPUB, PDF, DOCX, TXT, and MD.
- kokoro-tts
- openai-api
- text-to-speech