Developer Tools Worth a Look
A developer tool is not good because someone said so; it is good when it fits how you already work. So this list does not rank anything. It lays things out newest first, and if something you skim overlaps with a problem you have right now, that is your answer.
Many entries are GitHub repositories, so you can see star counts alongside the last commit date. Maintenance matters especially for tools. For something you touch daily, like an editor plugin or a build chain, whether it is still being worked on is a stronger signal than how many stars it has.
How this list is built: products in the Dev Tools category, ordered by when they were added, top 24. No ranking, no editorial weighting.
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OpenStockOpenStock is an open-source alternative to expensive market platforms. Track real-time prices, set personalized alerts…Dev Tools, 16,112, TypeScript, Last commit 1d ago - 2
CuaScale computer-use 2.0 with open-source drivers, cross-OS fleets, and benchmarks for training, evaluation, and data…Dev Tools, 24,487, HTML, Last commit 12h ago - 3
SupermemoryMemory and context engine + app that is extremely fast, scalable, and can be run fully locally. The Memory API for the…Dev Tools, 30,616, TypeScript, Last commit 1d ago - 4
RustfsRustFS is an open-source, S3-compatible high-performance object storage system supporting migration and coexistence…Dev Tools, 33,368, Rust, Last commit 13h ago - 5
ClineAutonomous coding agent as an SDK, IDE extension, or CLI assistant.Dev Tools, 68,794, TypeScript, Last commit 16h ago - 6
Knowledge Work PluginsEleven open-source plugin bundles that fit Claude to a job function.Dev Tools, 25,150, Python, Last commit 1d ago - 7
Claude CodeAgentic coding tool that runs in the terminal and works on the codebase around it.Dev Tools, 146,743, TypeScript, Last commit 11h ago - 8
PiAI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLIDev Tools, 107,354, TypeScript, Last commit 14h ago - 9
OpenDisplayOpen-source Sidecar alternative that makes an iPhone, iPad or old Mac a second displayDev Tools, 4,610, Swift, Last commit 1d ago - 10
Graphify C#Compiler-accurate Find Usages for coding agentsDev Tools, 67, C#, Last commit 3d ago - 11
toastBatteries-included IDE that lives in the terminalDev Tools, 260, Go, Last commit 8d ago - 12
gPTYTerminal multiplexer built on Godot and Rust with a JSON-RPC and MCP surface for AI agentsDev Tools, 73, GDScript, Last commit 2d ago - 13
PI-DesktopLocal-first AI coding agent desktop: Electron + Rust host core + pi Agent Harness + user-installable pluginsDev Tools, 4,515, TypeScript, Last commit 12h ago - 14
StuxnetA reconstructed source code of the infamous cyber-weaponDev Tools, 542, C, Last commit 1d ago - 15
Kadōopen-source habit tracker, with non-binary habit score, for iOSDev Tools, 171, Swift, Last commit 7d ago - 16
TERMyA fast terminal assistant that does not use LLMsDev Tools, 238, Python, Last commit 14h ago - 17
OpenCodeThe open source coding agent.Dev Tools, 208,667, TypeScript, Last commit 12h ago - 18
FmtA modern formatting libraryDev Tools, 25,790, C++, Last commit 23h ago - 19
ZSvirtA lightweight, scalable open source virtualization platformDev Tools, 1,689, Java, Last commit 4d ago - 20
AtlasSource control for coding agents, with every commit linked to the session that made itDev Tools, 4,725, TypeScript, Last commit 23h ago - 21
CheckstyleDevelopment tool that holds Java code to a coding standardDev Tools, 9,571, Java, Last commit 12h ago - 22
RealDiffruntime behavior diffing for pull requests (six languages)Dev Tools, 35, C#, Last commit 23d ago - 23
GoogletestGoogleTest - Google Testing and Mocking FrameworkDev Tools, 39,557, C++, Last commit 2d ago - 24
Sesamea local-first, open-source password managerDev Tools