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Top 23 TypeScript developer-tool Projects
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After the upgrades, TypeScript started rejecting Buffer as a Response body. This wasn't a runtime issue — Puppeteer still returns a Buffer — but astro check (and therefore npm run build) flags it.
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Project mention: The $847/year Developer Tool Stack That Replaced My $4,200 SaaS Subscriptions | dev.to | 2026-03-24
Hoppscotch is open-source, runs in the browser, and does everything I used Postman for. Collections, environments, WebSocket testing — all there.
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Project mention: How Daytona Works: The Complete Guide to AI-Powered Development Environments | dev.to | 2026-05-31
GitHub: https://github.com/daytonaio/daytona
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appsmith
Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.
AppSmith
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Refine
A React Framework for building internal tools, admin panels, dashboards & B2B apps with unmatched flexibility.
Project mention: Open Source Retool Alternative: A Code-First, AI-Native Approach | dev.to | 2026-04-28Refine: github.com/refinedev/refine
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Project mention: Why We Stopped Using vLLM 0.6 for Local LLMs in Favor of Ollama 0.5 for Code Tasks | dev.to | 2026-04-28
The Continue VS Code extension (https://github.com/continuedev/continue) has native support for Ollama 0.5, enabling seamless code completion and chat directly in your IDE without any cloud dependencies. To set up Continue with Ollama, install the Continue extension from the VS Code marketplace, then add the following configuration to your VS Code settings.json file. This will configure Continue to use your local Ollama instance for code completion, with the custom codellama-custom model we created earlier. Unlike cloud-based LLM extensions, this setup has zero latency from network requests, no data privacy concerns (all processing happens locally), and works offline once models are pulled. Our team saw a 30% increase in developer productivity after switching to local Ollama + Continue, as developers no longer had to wait for cloud API responses or worry about proprietary code being sent to third-party servers. Continue also supports chat-based code generation, where you can ask the local Ollama model to explain a function, write tests, or refactor code, all without leaving VS Code. This integration took 5 minutes to set up per developer, and eliminated our team’s reliance on cloud-based code LLM tools entirely.
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composio
Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.
Project mention: pass@1 is a gamble — how ensemble coding enhances AI reliability | dev.to | 2026-04-02The ensemble idea is in the air. Mozilla AI's Star Chamber fans out code reviews to Claude, GPT, and Gemini in parallel, using consensus tiers and optional debate rounds where anonymized feedback circulates back to all models. Karpathy's llm-council runs a deliberation pipeline — parallel query, peer review, chairman synthesis — for general-purpose tasks. Roundtable orchestrates multiple AI CLI tools through a unified MCP interface. Composio's Agent Orchestrator manages parallel coding agents with git worktrees for task decomposition — different agents working on different sub-tasks. And Aider's Architect Mode pairs two models in complementary roles (planner + editor).
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repomix
📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Language Models (LLMs) or other AI tools like Claude, ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more.
Most people paste files one at a time. Install Repomix and feed your entire project to the AI in one command.
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responsively-app
A modified web browser that helps in responsive web development. A web developer's must have dev-tool.
Project mention: Improving Responsively App Documentation – Week 2 of Hacktoberfest | dev.to | 2025-10-19For my second Hacktoberfest contribution, I worked on improving the documentation for Responsively App, an open-source desktop browser that helps developers preview responsive websites in real time. The README was missing some setup instructions and quick-start steps, so I decided to make it easier for new users and contributors.
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illa-builder
Low-code platform allows you to build business apps, enables you to quickly create internal tools such as dashboard, crud app, admin panel, crm, cms, etc. Supports PostgreSQL, MySQL, Supabase, GraphQL, MongoDB, MSSQL, Rest API, Hugging Face, Redis, etc. Automate workflows with schedule or webhook. Open source Retool.
Additionally, beyond the five major high star projects above, open source tools like Yao and ILLA Builder also maintain strong community activity. Yao provides a full stack application engine that enables rapid construction of models, workflows, and APIs for internal systems. ILLA Builder focuses on visual interface building, making it suitable for quickly creating admin panels and data tools. Both projects also offer basic AI extensions and can be useful complementary options when teams are building internal tools.
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jsonhero-web
JSON Hero is an open-source, beautiful JSON explorer for the web that lets you browse, search and navigate your JSON files at speed. 🚀. Built with 💜 by the Trigger.dev team.
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ccstatusline
🚀 Beautiful highly customizable statusline for Claude Code CLI with powerline support, themes, and more.
Project mention: claude-statusline: a configurable status line for Claude Code | dev.to | 2026-03-17ccstatusline: customizable formatter with token usage and metrics
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omni-tools
Self-hosted collection of powerful web-based tools for everyday tasks. No ads, no tracking, just fast, accessible utilities right from your browser!
Una bastante completa y variada: Omni Tools
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npkill
List any node_modules 📦 dir in your system and how heavy they are. You can then select which ones you want to erase to free up space 🧹
🧹 3. npkill — Delete node_modules Like a Pro
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massCode
A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, and dev tools in one local-first app.
I have never heard of a snippet manager until right now. (In good faith:) Where did you hear of them? Should I be following news somewhere else?
I see this one is popular and high on DDG: https://github.com/massCodeIO/massCode
But there's no screenshots or example usages, and it's not obvious to me how it works.
Is it like a local search engine you install? Is it an LSP? An LSP that's lighter than rust-analyzer could be useful for this kind of thing.
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kubero
A free and self-hosted PaaS alternative to Heroku / Netlify / Coolify / Vercel / Dokku / Portainer running on Kubernetes
Project mention: Lightweight tool for deploying containerised applications across servers | news.ycombinator.com | 2025-12-03 -
codeburn
See where your AI coding tokens go. Interactive TUI dashboard for Claude Code, Codex, and Cursor cost observability.
Project mention: Show HN: macOS menu bar gauges for your Claude Code quota | news.ycombinator.com | 2026-06-10I use codeburn, has both terminal and menu bar versions. Works quite well - https://github.com/getagentseal/codeburn
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garden
Automation for Kubernetes development and testing. Spin up production-like environments for development, testing, and CI on demand. Use the same configuration and workflows at every step of the process. Speed up your builds and test runs via shared result caching
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Project mention: Open-source Langsmith alternative written in Rust | news.ycombinator.com | 2026-01-06
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aide
Conquer Any Code in VSCode: One-Click Comments, Conversions, UI-to-Code, and AI Batch Processing of Files! 在 VSCode 中征服任何代码：一键注释、转换、UI 图生成代码、AI 批量处理文件！💪 (by nicepkg)
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CodeMachine-CLI
CodeMachine is an open-source tool that orchestrates AI coding agents into repeatable, long-running workflows. ⚡️
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Monokle
Monokle is a set of OSS tools designed to help create and maintain high-quality Kubernetes configurations throughout the application lifecycle
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript developer-tools discussion
TypeScript developer-tools related posts
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Ask HN: Are you using Spec Driven Development?
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Sharper context. Fewer tokens. Open-source middleware for Claude Code
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Webhook-verification bugs across 45 popular OSS repos
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Show HN: Kerf v3 – local cost tracking across Claude Code, Codex and Gemini
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I made a CLI tool that replaces the first 15 minutes of exploring any new codebase
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Hookwarden: Find missing webhook signature verification(JS/TS,Python,PHP)
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Spatial IDE's for agentic coding workflows
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A note from our sponsor - SaaSHub
www.saashub.com | 15 Jun 2026
Index
What are some of the best open-source developer-tool projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | puppeteer | 94,531 |
| 2 | Hoppscotch | 79,511 |
| 3 | daytona | 72,443 |
| 4 | appsmith | 40,040 |
| 5 | Refine | 34,861 |
| 6 | continue | 33,664 |
| 7 | composio | 28,715 |
| 8 | repomix | 26,157 |
| 9 | responsively-app | 24,969 |
| 10 | illa-builder | 12,265 |
| 11 | jsonhero-web | 10,747 |
| 12 | ccstatusline | 10,681 |
| 13 | omni-tools | 9,647 |
| 14 | npkill | 9,267 |
| 15 | massCode | 6,819 |
| 16 | yalc | 6,261 |
| 17 | kubero | 4,303 |
| 18 | codeburn | 4,193 |
| 19 | garden | 3,590 |
| 20 | lmnr | 3,001 |
| 21 | aide | 2,692 |
| 22 | CodeMachine-CLI | 2,491 |
| 23 | Monokle | 2,138 |
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