44 fast, free tools for builders
Formatters, converters, generators, calculators, and more — across 6 categories. No sign-ups. No tracking your data. Just paste, click, copy.
What people use most
JSON Formatter
Format, beautify, and explore JSON with an expandable tree view. Includes indent control and minify.
Base64 Encoder / Decoder
Encode or decode Base64 strings, with UTF-8 and URL-safe variant support.
Word Counter
Count characters, words, sentences, and paragraphs with live reading-time estimates.
Image Compressor
Compress JPEG, PNG, and WebP images locally with quality control.
Password Generator
Generate strong, cryptographically random passwords with character set and length controls.
QR Code Generator
Create QR codes for URLs, text, Wi-Fi, and contact details. Download as PNG or SVG.
Browse by category
Tools grouped into 6 focused categories. Each landing page lists everything in that area with a short intro.
Developer Tools
Formatters, validators, encoders, hashes, and converters for everyday dev work.
Design Tools
Interactive CSS generators with live previews. Copy and paste into your project.
Text Tools
Word counters, case converters, diff checkers, and other text utilities.
Image Tools
Compress, convert, resize, and crop images — entirely in your browser.
Calculators & Converters
Unit, age, EMI, percentage, file size, time zone, and timestamp tools.
Utility Tools
Password generators, QR codes, barcodes, invoices, and PDF utilities.
Fresh out of the oven
JSON Formatter
Format, beautify, and explore JSON with an expandable tree view. Includes indent control and minify.
JSON Validator
Validate JSON structure and pinpoint syntax errors by line and column.
HTML Formatter
Clean and indent messy HTML for better readability.
CSS Formatter
Format and organize CSS automatically with configurable brace and indent styles.
SQL Formatter
Beautify SQL queries with proper indentation across Postgres, MySQL, SQLite, and MSSQL dialects.
XML Formatter
Format XML into a clean, readable structure with attribute control.
Quick answers
Are these tools really free?+
Yes. Every tool on Free Tools Grid is free to use without an account, without a watermark, and without any payment. We may show small unobtrusive ads to cover hosting, but the tools themselves are free.
Do you upload my files or data to a server?+
No. Almost every tool here runs entirely in your browser using JavaScript and the Web platform APIs. Your images, PDFs, and text never leave your device. We don't have a backend that processes your content.
Can I use these tools offline?+
After the first page load, most tools work offline because all processing happens locally. We're also planning to ship a fully offline-capable PWA build in a future release.
Do you track my activity?+
We use Google Analytics to understand which tools are popular so we can improve them. We never sell data, and we don't read the content you paste into the tools. You can disable analytics from the cookie banner.
Why isn't there a sign-up?+
We deliberately don't ask you to create an account. Most users just want to format some JSON or compress an image — making that gated behind a sign-up is friction with no benefit.
Can I suggest a new tool?+
Absolutely. Email us through the contact page or open an issue on our GitHub repo with what you'd like to see.