byteschunk

Free tools

All tools

Every utility runs entirely in your browser. Nothing is uploaded, nothing is stored, no account is required.

Text

Text Case Converter

Convert text between UPPER, lower, Title, Sentence, camelCase, snake_case and kebab-case.

Slugify

Turn any text or title into a clean, URL-safe slug (accents stripped).

Regex Tester

Test regular expressions with live match highlighting, capture groups and flags.

Diff Viewer

Compare two blocks of text and see exactly what was added or removed, line by line.

Encoding

Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to text (UTF-8 safe).

URL Encode / Decode

Percent-encode text for URLs or decode encoded URL components.

JWT Decoder

Decode a JWT to inspect its header and payload claims (nothing is verified or sent).

Data

JSON Formatter

Pretty-print (beautify) or minify JSON with instant validation.

.env Validator

Check a .env file for duplicate keys, bad syntax and values that need quoting.

JSON to YAML

Convert between JSON and YAML in either direction.

CSV to JSON

Convert CSV to a JSON array of objects, and JSON back to CSV.

TOML to JSON

Convert between TOML and JSON in either direction.

Generators

UUID Generator

Generate v4 and v7 UUIDs (and a nil UUID) in bulk, with formatting options.

Hash Generator

Compute SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text.

Color Converter

Convert colors between HEX, RGB, HSL and HSV with a live preview.

Time

Timestamp Converter

Convert between Unix timestamps and human-readable dates across time zones.

Cron Explainer

Translate a cron expression into plain English and preview its next run times.