hatchmoment. scored by care · not by stars

🛠 Developer Tools

101 fresh developer tools projects, scored by craft.

All languages CC#DockerfileGoHTMLJava rare finds
sort: ★ Best ◷ Newest
git-dojo rare find

Interactive offline Git trainer for learning Git commands

Self‑contained, test‑driven, no‑network Git simulator

HTMLeducationgit
2w ago
buildcast rare find

buildcast: CLI that predicts remaining build effort using calibrated probabilistic forecasts

probabilistic forecasts with self‑validation

JavaScript
2w ago
zasmg-runtime-asm rare find

Runtime assembler turning assembly strings into callable machine code

Enables JIT assembly without external toolchains

Zigassembler-x86codegenarchived
3w ago
teamcache rare find

Shared AI context cache

Saves tokens

Python
2026-05-31

Build watchOS apps with React, rendered as native SwiftUI.

Native SwiftUI rendering via JSI.

Swift
2026-05-26
centella rare find

Centella: deterministic task orchestrator for Claude Code

Runs Claude tasks in isolated worktrees, no API key

Python
2026-05-24
unithread notable

unithread – unified true multithreading library for Node and browsers

Provides real OS threads via a single API

JavaScript
3d ago
percolation notable

Lean 4 library formalizing percolation theory and random‑cluster model

Provides rigorous math proofs in Lean

Lean
2w ago
terse notable

Lossless-first compression layer for AI tool JSON outputs

Reduces token usage while keeping data readable

Python
3w ago

Zed extension adding inline color swatches for hex literals

Shows and edits non‑CSS color codes directly

JavaScript
3w ago
SVGpicker notable

SVGpicker extracts icons from codebases and suggests replacements from popular libraries

Quickly finds and swaps icons via Iconify API

TypeScriptarchived
4w ago
nocruft notable

nocruft – CLI to trace and list files created by nix-shell

Shows exact paths created, enabling easy cleanup

Rustebpfnix-shell
4w ago
plotir notable

PlotIR converts a single chart intent into Vega‑Lite and Tableau files

Unified spec, multi‑output visualizations

TypeScript
2026-06-18
sdk-core notable

Doclight Core SDK – lightweight observability for AI agents

Typed event schema & async queue for agent telemetry

TypeScript
2026-06-14
prtokens notable

CLI to attribute AI coding token usage to GitHub PRs and post cost summary

Shows token counts and cost directly in PR comments

TypeScript
2026-06-13

VS Code extension warns when your unsaved buffer is older than the file on disk

Prevents lost edits from external file changes

JavaScript
2026-06-13
scalpel notable

scalpel: a local proxy that trims dead Claude context to cut token costs

Reduces Claude API token usage by pruning stale tool output

TypeScriptanthropicclaude-code
2026-06-12
duallity notable

Rust crate exposing Levenshtein automata as WFSTs for composition pipelines

Enables fuzzy matching to compose with other transducers

Rust
2026-06-11
ashcroft notable

Ashcroft: C# library to generate Open Graph social cards

Declarative API with auto typography and cross‑platform rendering

C#
2026-06-10

Local‑first AI coding agent framework for terminal and editor workflows

Runs on any Ollama model, keeps code local

TypeScript
2026-06-09

AI-powered agent that auto‑writes Go PRs from GitHub issues

Generates real, validated Go code changes automatically

Python
2026-06-07
cocos-ui notable

React‑style UI framework for Cocos Creator games

Declarative JSX UI with reactivity and animations

TypeScript
2026-06-06
myst notable

MyST Article Template for single-page articles with Markdown, Jupyter support, and PDF export

Reusable template with interactive HTML site and publication-ready PDF via Typst

Typst
2026-06-06
dravr-browser notable

Reusable headless-Chrome automation primitives for multiple Rust crates

Provides a battle-tested browser stack with anti-detection features

Rust
2026-06-05
claude-wrap-mcp notable

MCP server to spawn and control Claude Code AI sessions

CLI tool for orchestrating Claude Code agents

TypeScript
2026-06-01
moonbit-decimal notable

MoonBit arbitrary-precision decimal library for exact arithmetic

Provides IEEE‑754‑2008 compliant decimal math in MoonBit

MoonBit
2026-06-01
junco notable

Junco: AI‑driven CLI that turns Markdown tickets into GitHub pull requests

Automates ticket‑to‑PR workflow with AI

TypeScriptai-agentautomation
2026-06-01
harness-kit notable

HarnessKit: CLI to prep repos for AI coding agents

Automates AI‑ready repo setup

2026-05-29
squarespace-cli notable

CLIfor managing Squarespace commerce, orders, products, inventory via API

Safe dry‑run CLI with MCP integration for Squarespace admins

TypeScriptapicli
2026-05-29

Babashka pod for QR code encode/decode using Go

Adds QR support without Java AWT

Gobabashkaclojure
2026-05-29
cfx-escrow-bot notable

Automates FiveM/CFX escrow uploads via Discord bot

Simplifies asset management for game developers

JavaScript
2026-05-28
watchbench notable

Benchmark for evaluating event routing systems that decide which source events should wake downstream AI agents

First practical benchmark for comparing event-driven agent architectures on the same data

Pythonagentsai-agents
2026-05-25

Roblox Studio AI bridge that syncs code, tracks git, and scans for backdoors

All‑in‑one AI control, sync, git, security

TypeScript
2026-05-24
kero-datafinder notable

On-premise data discovery and classification engine with NLP for secure internal metadata scanning

Enterprise-grade zero-trust data scanner with built-in ML classification, runs fully offline

Goarchived
2026-05-23
project-cockpit notable

Cockpit CLI: unified dashboard for AI‑assisted project management

Live git/tmux status + safe actions from terminal

TypeScript
yesterday
eess notable

Executable Enforceable Specification System that validates code, diagrams, and docs

Keeps architecture artifacts in sync with source

TypeScript
4d ago
ReaperDevServer notable

Self‑hosted dev server offering durable project pods and persistent terminals

Provides isolated, persistent dev environments with web UI

JavaScriptagenticcaddy
4d ago
symphony notable

TypeScript bridge syncing Linear, Kanban, and Codex workflows

Local‑first orchestration layer for task management

TypeScript
1w ago
skill notable

Skill Framework for Claude/Codex agents – routing, hooks, and tools

Rust‑based routing & hook system for AI agents

Rust
1w ago
waken-slack notable

Slack integration library for Waken AI agents

Real‑time Slack source & output for AI workflows

Pythonagentsai
1w ago

CLI that improves developers' English in commits and PRs using AI

AI-powered grammar fixes tailored to CEFR levels

Rust
2w ago
rizzma notable

Rust plotting library mirroring matplotlib with WebAssembly support

Provides Rust-native plotting and cross‑platform rendering

Rust
2w ago
codex-threadctl notable

CLI for managing Codex Desktop threads locally

Enables thread ops when UI tools fail

Go
2w ago

cc-status: compose Claude Code plugin statusline into a single bar

Auto-discovers and joins plugin segments without manual edits

Shellclaude-codeclaude-code-plugin
3w ago

Static analyzer that tracks Android Compose component usage

Generates CSV reports and a web viewer for component stats

JavaScript
3w ago
repo-inspect notable

repo-inspect: CLI tool for focused code extraction for AI agents

Provides precise code snippets locally, no API keys

Rust
3w ago
workflow-radar notable

Live VS Code dashboard for monitoring AI workflow status

Shows real‑time workflow progress in the editor

TypeScript
3w ago
eve-box notable

Eve sandbox backend that runs on Box storage

Bridges Eve sandbox with Box API

TypeScript
2026-06-18
ux-blocks notable

PHP Symfony library offering UI block registry schema and test helpers

Provides schema and PHPUnit assertions for UX components

PHPdesign-systemregistry
2026-06-14

VSCode extension that syncs Claude/Copilot config for SFCC projects

Keeps AI tooling consistent across projects

TypeScript
2026-06-14
superpowers-a notable

Adaptive workflow router for AI coding agents, controlling risk depth

Lightweight risk‑based routing for Claude/Codex plugins

JavaScript
2026-06-11
uvoo-hugo notable

Hugo editor UI for authenticated web-based content editing

Go backend + React UI simplifies Hugo site management

Go
2026-06-11

A JavaScript visualizer for buffer page mapping models, showing page allocation across sharding models.

Provides a clear, interactive visualization of complex page mapping algorithms.

JavaScript
2026-06-10
-claudecode notable

MiniCode – lightweight terminal coding assistant for local development

Compact, extensible Claude‑Code‑like tool

TypeScript
2026-06-10
startype23 notable

CLI tool for visualizing file-type distribution in a directory

Useful for understanding file composition and disk usage

Pythonarchived
2026-06-09

API test automation for GitHub Issues using Playwright and pytest

Automates full GitHub Issue lifecycle testing via REST API

Python
2026-06-09

Roblox Studio plugin to browse and insert Lucide icons

Quick icon selection inside Roblox UI

Luau
2026-06-08

Universal Image & PDF Converter with ChatGPT integration supporting 18+ formats

Fast, secure, and free file conversion with high-quality output

TypeScript
2026-06-07
leanmgr notable

LeanMgr: CLI to manage and clean Lean .lake caches across projects

Provides safe, dry‑run cache cleanup for Lean projects

Rust
2026-06-07
kit notable

Shared UI and worker toolkit for Vite‑Hono‑Workers apps

Provides ready‑made components and middleware for the stack

TypeScript
2026-06-07

Local Git Sentinel: daily audit tool for uncommitted git repos

solves data loss due to storage failure

Shellmirrored-repository
2026-06-06

E2E test automation for restaurant dispatch panel using Playwright

Implements thorough testing for login, forgot password, and order search flows

JavaScript
2026-06-06
opencode-slave notable

opencode-slave – autonomous task runner for OpenCode projects

Manages tasks, worktrees, and recovery via CLI

JavaScript
2026-06-06
wisdom-bytes notable

Wisdom Bytes delivers daily micro-lessons of meta-wisdom in the terminal

Unique blend of wisdom and terminal integration

Shell
2026-06-06
Instance notable

VS Code extension syncing Roblox Studio data for local editing

Live sync of Roblox DataModel into editable files

TypeScriptarchived
2026-06-05

A fast viewer for AI agent sessions, parsing large transcripts efficiently

Optimized for performance, handling large files with ease

TypeScript
2026-06-03
ghost-repub notable

A Ruby script to convert Ghost blog posts to Markdown for cross-posting

Simplifies republishing Ghost blog posts to other platforms

Ruby
2026-06-02
pdf-genesis notable

PDF generator for research reports from markdown and JSON exports

Automates report generation with customizable pipeline and builder

Python
2026-06-01
eslint_config notable

Shared ESLint flat config with custom PerkyCrow rules

Provides ready‑to‑use linting and custom rules

JavaScript
2026-05-31
csvtriage notable

csvtriage: robust CSV loader that recovers from messy files

detects encoding, fixes rows, reports all actions

Python
2026-05-31
sbx-kits notable

A Go-based toolkit for building and managing sandboxed environments with human and agent interaction capabilities.

Integrated human-agent workflows with sandboxing for secure experimentation.

Dockerfile
2026-05-30
trade_bot notable

Crypto trading bot with backtesting and risk management

Modular design with comprehensive risk controls and clear path to live trading

Python
2026-05-30
uswds-mcp notable

MCP server providing USWDS component lookup for AI coding tools

Enables AI/IDE access to USWDS docs

2026-05-30

Docker‑powered Excalidraw + Claude Code sync for VSCode

Zero‑node, instant canvas sync

archived
2026-05-30
claude-prompter notable

Prompt coach for Claude Code

Improves prompt quality

2026-05-29
pobpaser notable

pob-parser: fast library to handle Path of Building import codes

Zero‑dependency, cross‑language parsing and fetching

2026-05-29
oj_windows notable

Windows-native high-performance JSON parser for Ruby

Enables Oj on MSVC Ruby builds

C
2026-05-29
pantheon-uli notable

TUI for Drupal one-time login links

Simplifies Pantheon site access

2026-05-28
Qwen-Qode notable

Qwen Qode: local AI coding assistant with browser UI and CLI

Integrates LLMs for code tasks without GPU

2026-05-28
dreamtheme notable

A unified color theme suite for terminals and dev tools

Consistent palette across many apps, easy install

2026-05-28

Shared domain contract library for Freitag Elektrobau testline, enabling consistent JSON schemas across TypeScript and C#

Ensures type safety and validation across languages via hand‑curated Zod and NJsonSchema generators

TypeScript
2026-05-27

Sticky note app with AI-powered voice input and automatic text summarization

Novel AI-powered voice input and automatic text summarization features

2026-05-27
secrets-manager notable

Local-first secrets manager that encrypts and deploys .env files

AI‑safe CLI + UI for scoped secret distribution

TypeScriptarchived
2026-05-25
gidel-jwt-core notable

Lightweight JWT library for key loading, registry, and token signing/verification

Simple API for managing JWT keys and services

Java
2026-05-25
Traversio notable

Native Swift SSH client library for Apple platforms

Full SSH, SFTP, and forwarding API in Swift

Swiftsshswift
2026-05-25
ffmpeg-min notable

Minimal Rust FFmpeg wrapper for audio decoding and streaming

Self‑contained, no external FFmpeg deps

Carchived
2026-05-24
live-ins-wiki notable

Lark-based LLM Wiki manager that stages, compiles, and tracks source provenance

Automates wiki node tree creation and source tracking

Shell
2026-05-24
rp-keyer notable

Firmware turning Raspberry Pi Pico into a standalone CW Morse keyer

Provides portable, hardware‑based Morse keying

Rust
2026-05-23
bamboo-cli worth a look

Bamboo CLI wraps AI coding tools, centralizing login and credentials

Unified credential handling for Claude and Codex

TypeScript
2026-05-31
lamcp worth a look

LAMCP – bridge letting LLMs control Grasshopper in real time

Enables AI agents to manipulate Rhino/Grasshopper live

Python
2026-05-31
scumaker-wiki worth a look

Static site generator for SCU Maker Wiki documentation

Generates a deployable HTML wiki from markdown

Python
2026-05-31
observable worth a look

A Go library providing reactive observable primitives for state management

Lightweight, MobX‑style reactivity in Go

Go
2026-05-31
z-lib worth a look

CLI tool to bulk download books from Z‑Library

Automates search, matching, and download

2026-05-30
metamorph worth a look

Metamorph plugin refines Claude Code agents by learning your workflow

Offers data‑driven suggestions to improve agent files

2026-05-30
zed_batch_extensions worth a look

Zed extension framework for developers to build and publish tools

Enables custom functionality in Zed editor

JavaScript
2026-05-28
youpd-skills worth a look

A Node-based skill kit for automating content creation workflows via LLM agents

Integrates LLM agents with SQLite-backed task state

TypeScript
2026-05-26
404NF-RoutePlan worth a look

A Nexus agent plugin that offers grid‑based A*, RRT, and multi‑agent path planning with obstacle handling

Rich algorithm suite in a single, easy‑to‑integrate library

Python
2026-05-24