10 free browser tools · no account

Finish small tasks without giving away your data.

Focused utilities for text, code, timestamps, and everyday calculations. Every tool works in your browser, and your input is not intentionally uploaded.

All tools

Choose one task and get the result

Design

Aspect Ratio Calculator

Calculate and reduce an aspect ratio, then find a matching width or height. Free, instant, and processed locally in your browser.

Open tool →Text

Text Diff Checker

Compare two text blocks line by line and highlight additions, removals, and unchanged lines. Your text stays in your browser.

Open tool →Developer

JavaScript Regex Tester

Test a JavaScript regular expression, flags, match positions, and capture groups locally in your browser with no text upload.

Open tool →Developer

Cron Expression Validator

Validate and explain a classic five-field Unix cron expression. See field errors and scheduler caveats instantly in your browser.

Open tool →Developer

JSON Formatter & Validator

Format, validate, or minify JSON entirely in your browser. Get immediate parse errors without uploading API payloads or configuration.

Open tool →Text

Word Counter

Count words, characters, sentences, paragraphs, and estimated reading time locally. Analyze English or multilingual text without upload.

Open tool →Developer

URL Encoder & Decoder

Encode text as a URL component or decode percent-encoded text locally. Handle spaces, Unicode, query values, and reserved characters.

Open tool →Developer

Base64 Encoder & Decoder

Encode UTF-8 text to Base64 or decode Base64 back to Unicode text locally in your browser. No payload upload or account required.

Open tool →Developer

Unix Timestamp Converter

Convert Unix seconds, Unix milliseconds, or an ISO date to UTC, ISO 8601, and your local browser time instantly and privately.

Open tool →Developer

SHA-256 Hash Generator

Generate a lowercase SHA-256 hexadecimal digest from UTF-8 text using the browser Web Crypto API. Input stays on your device.

Open tool →

Why local

Useful before an account, upload, or sales call

These utilities are deliberately narrow. Each page performs one real action, states its limits, and works without uploading the input. This first public batch is an experiment in whether useful task completion can earn recurring organic discovery.

Traffic, indexing, and tool runs will be measured separately. A published page or search impression is not treated as proof of a sustainable business.