# AI tools for “Tools” 108 matching tools; showing 24, ranked by relevance. Filters: `group=coding-development` | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Impeccable](https://openaitools.app/tool/impeccable) | 1,038,637 | +8.2% | Free | Give your coding agent real design judgment | semantic match | [.md](https://openaitools.app/tool/impeccable.md) | | 2 | [TheToolBus](https://openaitools.app/tool/thetoolbus-ai) | 154,850 | +19.2% | Free, Paid | 162+ free browser-based tools for PDFs, images, text, and quick conversions | semantic match | [.md](https://openaitools.app/tool/thetoolbus-ai.md) | | 3 | [Mastra](https://openaitools.app/tool/mastra) | 318,954 | -5% | Freemium, Contact for Pricing | The TypeScript framework for building, deploying, and observing AI agents | semantic match | [.md](https://openaitools.app/tool/mastra.md) | | 4 | [AGENTS.md](https://openaitools.app/tool/agents-md) | 245,457 | +5.7% | Free | An open Markdown convention for telling coding agents how your project works | semantic match | [.md](https://openaitools.app/tool/agents-md.md) | | 5 | [Interviews Chat](https://openaitools.app/tool/interviews-chat) | 135,960 | -6.8% | Freemium | Real-time AI interview copilot and prep coach in one platform | semantic match | [.md](https://openaitools.app/tool/interviews-chat.md) | | 6 | [Sim AI](https://openaitools.app/tool/sim-ai) | 140,953 | +20.6% | Freemium, Paid (per user/month), and Enterprise with custom pricing; self-hosting free under Apache 2.0 | Open-source workspace to build, deploy and govern AI agents | semantic match | [.md](https://openaitools.app/tool/sim-ai.md) | | 7 | [Ponytail](https://openaitools.app/tool/ponytail) | 117,860 | -3.9% | Free | A ruleset that makes AI coding agents write the least code that works | semantic match | [.md](https://openaitools.app/tool/ponytail.md) | | 8 | [Caveman](https://openaitools.app/tool/caveman) | 171,826 | -15.5% | Freemium, Contact for Pricing | Cut AI agent token costs with recoverable context compression and smart model routing | semantic match | [.md](https://openaitools.app/tool/caveman.md) | | 9 | [Raindrop](https://openaitools.app/tool/raindrop) | 42,807 | -18.4% | Free Trial, Paid, Contact for Pricing | Find and fix problems in your AI agents before users do | semantic match | [.md](https://openaitools.app/tool/raindrop.md) | | 10 | [Flatkey](https://openaitools.app/tool/flatkey-ai) | 49,134 | -40.8% | Paid, Contact for Pricing | One API key for frontier models, 1,000+ AI tools, and one invoice | semantic match | [.md](https://openaitools.app/tool/flatkey-ai.md) | | 11 | [Rerun](https://openaitools.app/tool/rerun) | 54,018 | -23.7% | Free | The open-source data layer for robotics and physical AI | semantic match | [.md](https://openaitools.app/tool/rerun.md) | | 12 | [CalcForge](https://openaitools.app/tool/calcforge) | 31,360 | -4.8% | Free, Paid | Open-source engineering calculators for civil and structural design | semantic match | [.md](https://openaitools.app/tool/calcforge.md) | | 13 | [gpt-oss playground](https://openaitools.app/tool/gpt-oss-playground) | 37,746 | -19.8% | Free | A live demo playground for OpenAI's open-weight gpt-oss models | semantic match | [.md](https://openaitools.app/tool/gpt-oss-playground.md) | | 14 | [Pickaxe](https://openaitools.app/tool/pickaxe) | 26,159 | -30.7% | Freemium | Build AI agents for anything, sell them to anyone | semantic match | [.md](https://openaitools.app/tool/pickaxe.md) | | 15 | [GPTOnline](https://openaitools.app/tool/chatgpt-online-gptonline-ai) | 32,047 | -48.6% | Free | Free AI chat with no signup, paired with ready-made writing tools, AI news and a tools directory. | semantic match | [.md](https://openaitools.app/tool/chatgpt-online-gptonline-ai.md) | | 16 | [Agent Skills Hub](https://openaitools.app/tool/agent-skils-hub) | 28,753 | +34.3% | Freemium, Paid, Free | Security-graded marketplace for Claude skills, MCP servers and AI agent tools | semantic match | [.md](https://openaitools.app/tool/agent-skils-hub.md) | | 17 | [AI SDK Agents](https://openaitools.app/tool/ai-sdk-agents) | 26,211 | -26.2% | Freemium | Full-stack Vercel AI SDK patterns for shipping real AI apps | semantic match | [.md](https://openaitools.app/tool/ai-sdk-agents.md) | | 18 | [NinjaTools](https://openaitools.app/tool/ninjatools) | 16,725 | -14.9% | Paid | One subscription for a full workspace of AI models and creation tools | semantic match | [.md](https://openaitools.app/tool/ninjatools.md) | | 19 | [No Code Founders](https://openaitools.app/tool/ncf3) | 17,225 | +52.4% | Freemium, Paid, Free | Curated no-code tool deals and build guides for non-technical founders | semantic match | [.md](https://openaitools.app/tool/ncf3.md) | | 20 | [Blume](https://openaitools.app/tool/blume-codes) | 16,263 | -71.6% | Free | Know what your coding agents built before you ship | semantic match | [.md](https://openaitools.app/tool/blume-codes.md) | | 21 | [AIGCLIST](https://openaitools.app/tool/aigclist) | 11,674 | +47.5% | Freemium, Paid | A curated AI tool directory that also lets you generate trends on-site | semantic match | [.md](https://openaitools.app/tool/aigclist.md) | | 22 | [makr.io](https://openaitools.app/tool/makr-io-15-web-apps-in-30-days) | 5,933 | +160.4% | Free | 85+ free browser tools and Claude Code skills, all privacy-first | semantic match | [.md](https://openaitools.app/tool/makr-io-15-web-apps-in-30-days.md) | | 23 | [Mireye](https://openaitools.app/tool/mireye) | 10,770 | +13.9% | Freemium, Contact for Pricing | One API and MCP server that gives AI agents cited physical-world and geospatial data | semantic match | [.md](https://openaitools.app/tool/mireye.md) | | 24 | [2MarkDown.io](https://openaitools.app/tool/2markdown-io) | 8,899 | +0.4% | Freemium | Free browser-based Markdown converter with 37 tools for files, links and web content | semantic match | [.md](https://openaitools.app/tool/2markdown-io.md) | Page 1 of 5 · [Next page →](https://openaitools.app/index.md?q=Tools&group=coding-development&page=2) For programmatic access use `https://openaitools.app/api/tools?q=…` or MCP `https://openaitools.app/api/mcp`. --- Source: https://openaitools.app/?q=Tools More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)