developer tools Tools

opencode zen is a curated, “ready-to-use” gateway of tested models optimized for coding agents. It integrates as an optional provider within opencode, offering pay-as-you-go access to top models (e.g. GPT-5, Claude, Grok) with no lock-in.

Manus Cloud Computer gives you a persistent machine in the cloud to run bots, Python scripts, apps, databases, and scheduled jobs 24/7. No DevOps, no server setup, no coding required. Just describe what you want to build, and keep it running around the clock.

CipherLock is a minimalist interactive hub to explore cryptography. Features Caesar, Vigenère, Morse, Atbash & Rail Fence ciphers. Includes an Academy for foundations and a Daily Enigma challenge. 100% client-side, open source & privacy-focused.

This is an interactive demo builder that leverages the Xcode simulator directly from macOS. It capture what you want how you want and allows you to link hotspots (clickable areas) to screens or animations. It then allows you to either export to a self contained html file or publish to a shareable link that you can also embed into any site. This gives your landing page a interactive demo sitting right there for users!

Running 5 AI agents across 3 projects? Tabs everywhere, no idea what each one is doing. HiveTerm is one terminal workspace where Claude Code, Codex, Gemini and your dev stack run side by side. Config-driven (hive.yml), per-agent recap in the sidebar, voice input, and an MCP server so agents can spawn and talk to each other. Free to start — up to 3 projects on the free tier. macOS, Windows, Linux.

Ghosted is an “away mode” for your Mac. It uses on-device presence detection to pause media or lock your screen when you leave, then resumes when you return. No cloud, no accounts, no tracking. Just automatic control of your workspace without breaking focus.

Beauty Diagram makes your Mermaid and PlantUML diagrams beautiful. Pick from curated themes, animate the flow, and export as SVG, PNG, or GIF. Use the web editor, CLI, or API to drop diagrams straight into docs, PRs, and presentations.

AI agents render UI slowly, expensively, and inconsistently — and a huge chunk of inference bills gets eaten by UI generation. Montage fixes it. Your agent emits a tiny intent schema; we compile it server-side into production components. 10x faster hydration, 50-100x fewer output tokens, model-agnostic, framework-agnostic, themed to your brand. Don't let your agents reinvent UI every turn - ship them on Montage!

Fast — Written from scratch in Rust to efficiently leverage multiple CPU cores and your GPU. • Agentic — Run agents in parallel to smoothly edit files, navigate code, and run tools at native speed. • Collaborative — Chat with teammates, code together, and share your screen and project.

Wonder puts an AI design agent directly on the canvas. Generate UI, graphics, and pitch decks, then select any element to refine in real time. Connect MCP to coding agents like Cursor and Claude Code to ship straight from design. Now in public alpha.

Open-source TUI for Playwright testing. Record your flow in the browser, then everything happens in your terminal. No tab-switching to ChatGPT/Claude, no copy-pasting, no manual context juggling. Bring your own API key (OpenAI, Claude, Gemini). Runs entirely local. Our LLM orchestration expands one recording into comprehensive test coverage - edge cases, error handling, boundary conditions - more efficiently than calling LLMs directly. Record, generate, run: all terminal-native. MIT licensed.

Tabstack is a web data and automation API that delivers reliable structured output. Pass a URL and a schema, get back JSON that matches every time. Run research in one call and get cited answers back. Automate browsers without running infrastructure. The intelligence is built into every API call. No scraper to build, maintain, or watch break when a site changes. Built at Mozilla.

Quarkdown is a modern, fast, Markdown-based typesetting system to create papers, presentations, knowledge bases and websites. Write in the markup language you're already familiar with for a flat learning curve, but juice it up with powerful extensions for full control over your documents, and live preview to enter flow state faster. Quarkdown runs on VS Code or your terminal.

Spec27 is a validation platform for AI agents. It helps teams move beyond manual, vibes-based testing by using machine-readable specifications to generate broader test coverage, catch regressions earlier, and validate both in-house and third-party systems without needing SDK integration or code-level access.

Two research agents in the Gemini API: Deep Research for low-latency interactive workflows, Deep Research Max for exhaustive async synthesis. Both support MCP data sources and native chart generation. For developers and AI engineers.

A lightweight and modern macOS code editor built for speed and simplicity - focused on speed, readability, and automatic syntax highlighting. Minimal by design: quick edits, fast file access. - h3pdesign/Neon-Vision-Editor

CodeHealth MCP Server ensures agents and AI coding assistants write maintainable, production-ready code without introducing technical debt. Using deterministic CodeHealth feedback, it guides agents to spot risks, improve unhealthy code, and refactor toward clear quality targets. Run it locally and keep full control of your workflow while making legacy systems more AI-ready. The result is more reliable AI-generated code, safer refactoring, and greater trust in real engineering workflows.

Open-source plugin that redacts PII before Claude Code reads it. Names, emails, and IBANs become placeholders Claude sees; you reveal originals locally. Same engine ships as a CLI for any LLM and a hosted proxy for OpenAI/Anthropic/Azure.

Get up and running in 2 minutes with Devin for Terminal, a local command-line coding agent with deep Devin Cloud integration.

Today we're introducing Dreambase Skills, a composable layer that bundles your data sources (Supabase tables, Stripe, PostHog, any API or MCP), business logic, and visualization rules into reusable units our agents use to build accurate dashboards and reports. Onboarding scans your database and prepopulates Skills automatically. Coming soon via CLI, API, and MCP so other agents can consume them too.

CometChat's Compact Message Composer, part of the CometChat UI Kits, brings rich text formatting to your chat app - bold, italic, strikethrough, underline, links, bullet points, blockquotes and more. Enabled with a single prop. Comes with a floating toolbar, keyboard shortcuts, and full control over how messages are sent. Drop it into any framework and ship a richer chat experience in minutes.