AI Tools

Tools designed for the AI era. Sanitize prompts before sending to ChatGPT, Claude, or Gemini. Remove PII, API keys, and sensitive data to protect your privacy when using AI assistants.

13 free tools — all run 100% in your browser

AI Prompt Cleaner

Sanitize text before sending to AI. Removes PII, API keys, URLs, code comments, and estimates token count.

AI Text Summarizer Prep

Prepare text for AI summarization. Remove noise, format structure, estimate tokens, and generate optimal summarization prompts.

AI Code Explainer Prep

Prepare code snippets for AI explanation. Strip sensitive data, add context markers, detect language, and generate explanation prompts.

AI Regex Prompt Builder

Describe what you want to match in plain English and get an optimized prompt for AI to generate the perfect regex pattern.

AI Commit Message Generator Prep

Paste your git diff and generate optimized prompts for AI to write conventional commit messages. Supports conventional commits format.

AI TODO Extractor

Extract TODO, FIXME, HACK, and NOTE comments from code. Generate AI prompts to prioritize and resolve them.

AI Token Counter

Count tokens for GPT-4, Claude, Gemini & Llama. See cost estimates per model. 100% client-side BPE estimation.

AI Context Window Calculator

Check if your prompt fits GPT-4, Claude, Gemini context windows. Estimate tokens, usage %, and API costs per model.

AI Diff Explainer Prep

Paste a git diff, choose review focus (security, performance, bugs), get a structured prompt for AI code review.

AI JSON-to-Prompt Generator

Paste JSON, choose a mode (analyze, transform, validate, document, mock), get a structured AI prompt instantly.

AI README Generator Prep

Fill in project details, pick a style (minimal, detailed, badges, startup), get a polished AI prompt for README.md generation.

AI API Cost Calculator

Compare API costs across GPT-4, Claude, Gemini, Llama, DeepSeek & more. Estimate per-request, daily, and monthly expenses.

AI Code Reviewer Prep

Paste code, choose review type (review, refactor, explain, document, test), get expert-level AI prompts with language-specific focus.

About AI Tools

DevUtility Hub offers 13+ free ai tools that run entirely in your browser. Unlike server-based alternatives, your data never leaves your device — making these tools safe for working with production data, API keys, and sensitive information.

Every tool is instant, requires no sign-up, and works offline once loaded. Whether you're a full-stack developer, frontend engineer, DevOps professional, or student — these tools save you time on tasks you do every day.

Popular AI Tools

AI Prompt Cleaner — Sanitize text before sending to AI.
AI Text Summarizer Prep — Prepare text for AI summarization.
AI Code Explainer Prep — Prepare code snippets for AI explanation.
AI Regex Prompt Builder — Describe what you want to match in plain English and get an optimized prompt for AI to generate the perfect regex pattern.
AI Commit Message Generator Prep — Paste your git diff and generate optimized prompts for AI to write conventional commit messages.
AI TODO Extractor — Extract TODO, FIXME, HACK, and NOTE comments from code.

Why Client-Side Tools?

Server-based tools send your data to remote servers for processing. Client-side tools like ours process everything locally in your browser using JavaScript. This means zero latency, complete privacy, and no risk of data breaches. Your JSON, passwords, tokens, and code never leave your machine.