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Browse the full Toolhox catalog — 500+ free online tools across every category. No signup, no friction.
105 tools
Openai Api Cost Per User Calculator
Estimate OpenAI API cost per user using token usage and pricing inputs. Calculate per-user and multi-user API costs for planning.
O3 Reasoning Token Cost Estimator
Estimate o3 reasoning token costs using the applicable output-token rate. Get a clear cost estimate from your reasoning token count.
Openai Prompt Caching Cost Calculator
Calculate OpenAI prompt caching costs using input, cached input, cache-write, and output tokens. Get a clear token cost estimate for your API usage.
Openai Batch Api Cost Calculator
Calculate OpenAI Batch API costs from input and output tokens and pricing. Estimate your API spend for batch workloads with Toolhox.
Gpt 5 Token Price Calculator
Estimate GPT-5 API token costs from input and output tokens and applicable rates. Calculate your estimated usage cost in USD.
Openai Api Cost Calculator Online
Estimate OpenAI API costs from input and output tokens. Calculate token usage and total estimated API costs for planning.
Claude Token Counter – Free Ai Token Calculator (2026 Update)
Easily count tokens for Claude AI prompts and responses with our free Claude Token Counter. Updated for 2026, this tool helps you check token usage, optimize prompt length, and avoid cut‑offs. Fast, accurate, and simple to use.
Comfyui Workflow To Api Converter
Free ComfyUI workflow to API converter. Paste a ComfyUI UI workflow (0.4 or 1.0) or API prompt JSON and get a deterministic, flat API-format prompt with diagnostics and stats. 100% private, runs in your browser.
Json Schema To Function Call Converter Tool
Free JSON Schema to function call converter. Turn any JSON Schema into OpenAI Responses, OpenAI Chat, or MCP tool definitions with compatibility analysis and validated examples. 100% private, runs in your browser.
Ollama Modelfile Generator
Free Ollama Modelfile builder. Create, import and validate Modelfiles with live checks, then copy or download the result. 100% private, works offline in your browser.
Claude Desktop Mcp Config Builder Online
Free Claude Desktop MCP config builder. Create, import, validate and merge claude_desktop_config.json servers, then export a .mcpb Desktop Extension. 100% private, runs in your browser.
Cursor Mcp Config Generator
Free Cursor MCP config generator. Describe any MCP server, validate the command and env vars, then copy or download a ready to paste mcp.json entry. 100% private, runs in your browser.
Base64 Image Encoder & Decoder Online Free
Easily convert images to Base64 code or decode Base64 strings back to JPG, PNG, and WebP instantly with our fast, secure online converter.
Free Json To Base64 Converter - 100% Free
Convert your JSON data instantly using our fast, secure, and free JSON to Base64 converter. Encodes your JSON strings accurately in one click.
Best Online Json Beautifier – Format & Prettify Code
Use this free JSON beautifier to format, validate, and clean up messy JSON code instantly online. Fast, secure, and developer-friendly.
Free Json Formatter Online - Prettify & Validate
Prettify, minify, and fix JSON code effortlessly with this free JSON formatter online. Includes real-time syntax validation and instant tree view.
Convert Json To Csv Online - Quick, Free & Easy Tool
Easily turn your JSON data into clean CSV files with our free JSON to CSV converter. Convert large files quickly with complete data security and zero setup required.
Free Json To Word Converter Online
Convert JSON to Word document format online in seconds. Our free JSON to Word Converter tool makes document styling fast, secure, and accurate.
Compare Json Online | Free Json Diff Checker
Compare JSON online to easily find differences between two JSON files. Enjoy fast, secure side-by-side diffing and syntax validation directly in your browser.
Htaccess 301 Redirect Generator For Wordpress
Generate clean WordPress 301 redirects instantly. Use our free HTACCESS 301 redirect generator for WordPress to fix broken links and boost SEO.
Htaccess Rewrite Rule Builder | Free Code Generator
Boost site performance and fix broken links. Use this free htaccess rewrite rule builder to generate clean, SEO-friendly Apache URL rewrite code instantly.
Free Htaccess Ip Blocker Code Generator
Easily generate clean code with our HTACCESS IP Blocker tool. Secure your website from spam, harmful bots, and unwanted traffic instantly.
Tailwind Button Generator
Free Tailwind button generator. Style text, colors, size, radius, shadow, hover and animation with live preview plus Tailwind, CSS and HTML output. 100% private, runs in your browser.
Tailwind Color Palette Generator From Hex
Create Tailwind CSS color palettes from any hex code. Free 2026 tool to generate, customize, and export responsive color sets instantly.
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