Just File Tools

Free Online File Tools

Process PDFs, images, and text entirely in your browser. Your files never leave your device.

100% private — all processing happens locally
73 tools No sign-up No watermarks

PDF Tools

Merge, split, compress, and convert PDF files

Image Tools

Compress, resize, and convert images

Text Tools

Format, convert, encode, generate, and more

Developer Tools

Encoders, generators, and converters for everyday coding tasks

Data URL Encoder
Convert any file to a data: URL and decode back to a file
File Hash Verifier
Compute MD5/SHA hashes of any file and verify against an expected value
ZIP Compress / Extract
Bundle files into a ZIP or extract files from a ZIP — both directions in your browser
URL Encoder/Decoder
Percent-encode or decode URLs and query strings
HTML Entity Encoder/Decoder
Escape or unescape HTML entities like &, <, >
Password Generator
Generate cryptographically strong random passwords
Unix Timestamp Converter
Convert between Unix timestamps, ISO 8601 dates, and human-readable times
Number Base Converter
Convert numbers between binary, octal, decimal, hex, and any base 2–36
Regex Tester
Test JavaScript regular expressions against sample input with live match highlighting
JWT Decoder
Decode and inspect JSON Web Tokens (header, payload, signature)
SQL Formatter
Pretty-print SQL queries for PostgreSQL, MySQL, SQLite, MS SQL, and more
XML Formatter
Format, indent, and minify XML documents
YAML Formatter
Validate, format, and convert YAML to JSON
JSON ↔ YAML ↔ TOML ↔ XML Converter
Convert structured data between JSON, YAML, TOML, and XML
HTML / CSS / JS Beautifier & Minifier
Beautify or minify HTML, CSS, and JavaScript source
Text Diff
Compare two text blocks side by side with line, word, or character resolution
JSON Diff
Structural diff of two JSON documents — added, removed, and changed paths
Mock Data Generator
Generate realistic fake data (names, emails, addresses, dates, lorem) as JSON or CSV
Cron Expression Builder
Translate cron expressions to plain English and preview next fire times
HMAC Generator
Compute HMAC-SHA1/256/384/512 from a message and secret key. Verify webhook signatures.
Timezone Converter
Convert a wall-clock time between any IANA timezones with DST handled correctly
File Type Detector
Identify a file from its magic bytes — catch mislabeled extensions

Design Tools

Visual CSS builders and color tools for designers and front-end developers

Why Just File Tools?

100% Private
Files are processed locally in your browser. Nothing is uploaded to any server, ever.
Instant Processing
No waiting for server uploads or downloads. Processing starts immediately on your device.
Free to Use
All tools are free with no sign-up required. No watermarks, no hidden limits.