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SaaS products & open-source projects
Explore handpicked SaaS products, open-source projects, and 65+ free developer tools,
plus cheat sheets, snippets, and free resources — curated for builders.
Trending Leaderboard
Top products and open-source projects gaining attention this week.
crystlcrystl is a Metal-accelerated macOS terminal for running Claude Code, Codex, Antigravity CLI and other CLI coding agents in parallel across projects, with a git worktree per agent, floating approval cards, orchestration, scheduling and an iPhone companion app. Free tier; Guild is $170/year.13
TraceXTraceX reads a support email or ticket, investigates your database, code and logs with read-only access, finds the root cause with cited evidence, and opens the fix as a pull request with a drafted customer reply. It also answers production questions in plain English and ships a CLI with a coding mode.13
WonderWonder puts Claude Code and Codex agents, a git worktree per task, your running app and an editable design canvas in one desktop workspace. Agents run locally on your own subscriptions, edits made visually on the live app are applied back to code, and Wonder also serves external agents over MCP.8- 4
MaritimeMaritime is a YC-backed cloud that gives every AI agent its own isolated machine: persistent agent boxes that sleep and wake in about a second, per-second sandboxes and swarms, and Linux desktops, Windows desktops and Android phones an agent can see and control, driven by API, SDKs, CLI or MCP.13 - 5
RerunRerun lets teams hire AI "coworkers" that work on a schedule or trigger inside a private cloud computer, connect to thousands of apps and MCP servers, ask before consequential actions, and run on a Claude or ChatGPT subscription, an API key or included credits. It is open source under AGPL-3.0 and can be self-hosted.13
Open Source Projects
Discover trending GitHub repositories.
ESC JSON Form Angular
Angular Standalone Component for JSON Form Editing
esc-editor
Esc-editor is a feature-rich, TypeScript-friendly WYSIWYG editor for React that provides robust table support, image resizing, and dark mode via CSS custom properties.
awesome-iot — 🤖 A curated list of awesome Internet of Things projects and resources
🤖 A curated list of awesome Internet of Things projects and resources.
Build Your Own X
Build Your Own X is an open-source learning platform that guides users through recreating complex technologies from scratch, fostering deep understanding and practical skills.
awesome-selfhosted — A list of Free Software network services and web applications which can be hosted on your…
A list of Free Software network services and web applications which can be hosted on your own servers
OpenCode: Open-Source AI Coding Agent for the Terminal
Open-source AI coding agent for the terminal that works with 75+ LLM providers and local models.
Free Developer Tools
Rotates daily86+ browser-based tools that work instantly with no signup
MongoDB Query Formatter
Format and beautify MongoDB queries
Screen Resolution Tester
Test and display current screen resolution details
Color Converter for HEX, RGB and HSL with Live Swatch
Convert colors between HEX, RGB and HSL with a live swatch
HTML Minifier for Comments and Inter-Tag Whitespace
Minify HTML by removing whitespace and comments
Markdown to HTML Converter with Preview and Source View
Convert Markdown text to HTML with live preview
Image Cropper
Crop images with a visual selection tool
Latest from the Blog
Insights, guides and stories for builders.
Best Programming Language to Learn in 2026: A Decision Guide by Goal
Which language to learn first in 2026, by goal: web, data and AI, mobile, systems, games or jobs, checked against Stack Overflow, GitHub and TIOBE data.
20 Python Projects for Beginners, Graded by Difficulty (With Code)
20 Python projects for beginners in three difficulty levels, each with a goal, the skills it teaches, runnable starter code and stretch goals to keep going.
Cursor Rules: .cursor/rules, MDC Format and 10 Copy-Paste Examples
How Cursor rules work in 2026: .cursor/rules MDC files, the four apply modes, precedence, AGENTS.md, legacy .cursorrules, and 10 copy-paste rule examples.
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