Search and quickly navigate to tools.
A focused catalog of 100+ free utilities for developers, SEOs and makers. Validate, convert and inspect — without sign-ups, uploads, or account friction.
Beyond the static tool catalog — live GitHub trends, the largest free-tier directory, and AI agent skills.
Top-starred new repos this week, month, and quarter — filter by language.
Free-tier hosting, databases, AI APIs, auth — synced from free-for-dev.
Reusable capabilities for Claude, Cursor, and Codex — from Anthropic, Vercel, and more.
Battle-tested ChatGPT, Claude, and Cursor prompts — searchable and copy-ready.
Git, Docker, SQL, regex, frameworks — quick reference sheets synced from devhints.io.
Model Context Protocol servers for Claude, Cursor, and any MCP-compatible agent.
Fast-entry tools chosen for real workflows — preview, validate, and convert without setup friction.
HTML viewer and live preview editor to test, debug, render, copy, and download HTML directly in the browser.
Convert Markdown into clean HTML with live preview and GitHub Flavored Markdown support. Useful for docs, blog drafts, README files, and CMS publishing workflows.
Turn an MP3 (or any audio file) into a video with an optional cover image. Runs in your browser using the MediaRecorder API — no upload, no signup.
Audit metadata, generate checklists, validate links, and ship higher-ranking pages — without paid SaaS.
Count words, characters, sentences, and paragraphs in any text instantly. Get real-time statistics including reading time and keyword density.
Estimate how long a text takes to read based on word count. See reading time, character count, sentence count, and paragraph count in real time.
Analyze title tags, meta descriptions, Open Graph tags, Twitter Cards, robots directives, and canonical URLs for any web page to improve search engine visibility.
Convert text into lowercase, UPPERCASE, Capitalized Case, Title Case, or alternating text instantly while tracking words and characters in real time.
Format, minify, convert, and inspect code in the browser — no installs, no pasted secrets.
Minify and compress your JavaScript code online. Remove whitespace, comments, and shorten variable names to reduce file size and improve page load speed.
Convert raw HTML into React-ready JSX instantly. Fix common attribute differences like className, self-closing tags, and inline style syntax without manual cleanup.
HTML viewer and live preview editor to test, debug, render, copy, and download HTML directly in the browser.
Test, debug, and validate regular expressions in real time with match highlighting, capture group extraction, and support for all major regex flags.
Inspect SSL, DNS, headers, and credentials safely — every check runs client-side where possible.
Obfuscate JavaScript code with configurable protection settings such as string array encoding, control-flow flattening, dead-code injection, and debug resistance.
View your browser's current user agent string instantly. Useful for compatibility checks, support tickets, QA workflows, and browser debugging.
Find your current public IP address along with approximate location, ISP, hostname, timezone, and related network details in one quick lookup.
Decode JWT header and payload data or create unsigned example tokens from JSON input for debugging, education, and authentication troubleshooting.
Quick utilities that don't fit a single category — barcodes, color tools, generators, and helpers.
Expand shortened URLs and reveal the final destination before opening them. Useful for security checks, campaign review, and safe link verification.
Create QR codes for URLs, plain text, contact details, and other shareable content in seconds. Generate a clean code, preview it instantly, and download it as PNG.
Convert written text into spoken audio using browser voices. Great for accessibility, proofreading, script review, language practice, and listening to drafts aloud.
Calculate your carbon footprint with this simple tool.
Calculate, compare, and convert — from percentages and mortgages to unit conversions and budgets.
Calculate percentages instantly. Find percentage of a number, percentage increase or decrease, percentage difference, discounts, tips, taxes, and profit margins.
Estimate monthly mortgage payments based on loan amount, interest rate, and term. Use it to compare affordability, plan budgets, and understand long-term loan costs.
Convert, compress, and resize images and audio privately in the browser — no uploads required.
Convert multiple images into a single PDF in your browser. Reorder pages, compress files before export, and download a shareable document in minutes.
Resize images in your browser with custom width and height controls, optional aspect-ratio locking, and batch ZIP download for fast web and social media prep.
Convert PNG images to JPG in your browser to reduce file size and improve compatibility when transparency is not required.
Convert JPG images to PNG in your browser when you need a lossless output format for editing, design handoff, or broader compatibility.
Count, clean, capitalize, and format text — quick passes that fit a writer's workflow.
Generate boilerplate policies, disclaimers, and notices to match your site's actual practices.
Generate a privacy policy with this simple tool.
Easily generate customized Terms & Conditions for your website or application.
Create a comprehensive Cookies Policy tailored to your website or service.
Generate a complete Return & Refund Policy for your store with company details, return window, and contact options. Copy or download the HTML instantly.
Inspect and prepare content for AI workflows — token counts, embeddings, LLM-friendly metadata.
Rewrite and improve your paragraphs with AI-powered technology.
Create powerful, effective prompts for AI chatbots and content generators.
Generate engaging paragraphs on any topic with AI assistance.
Create catchy titles and headlines with AI-powered creativity.
Practical deep-dives to help you get more out of free online tools.
Why CSV to JSON conversion matters for APIs, the structural choices that cause bugs, free browser-based conversion, and when to use a library instead.
Why domain age matters for SEO, how to check it for free with RDAP, and how to evaluate competitor domains. Practical use cases for SEO audits, phishing triage, and M&A.
How JavaScript obfuscation actually works, when it helps, when it hurts, what features matter, and why it is never a real security boundary.
Quick answers about how our tools work, privacy, costs, and what to do when something doesn't look right.