devbench.net
$ developer utilities for the masses

The developer tools you keep googling.
All in one tab.

Free utilities for everyday work: Do anything from formatting JSON & SQL, testing regex, converting timezones, previewing Markdown and so much more. Fast, ad-supported, and entirely client-side.

JSON formatter →Regex tester →UUID generator →

Converters

Converters→

Epoch / Unix Timestamp Converter

Convert Unix epoch timestamps to human-readable dates and back, in any timezone.

Converters→

HTML Colour Picker

Pick colours and convert between HEX, RGB, and HSL with live WCAG contrast checks.

Converters→

UTC Timezone Converter

Convert UTC and any timezone to multiple cities side-by-side. DST-aware.

Generators

Generators→

UUID Generator

Generate UUID v1, v4, and v7 identifiers in bulk, instantly.

Generators→

QR Code Generator

Create custom QR codes for URLs, text, Wi-Fi, and more. Download as PNG.

Generators→

SQL IN Clause Generator

Turn a pasted Excel column or CSV into a properly formatted SQL IN (...) list.

Formatters

Formatters→

JSON Formatter & Validator

Pretty-print, validate, and minify JSON with detailed error reporting.

Formatters→

SQL Formatter

Format SQL queries for PostgreSQL, MySQL, SQLite, BigQuery, and more.

Formatters→

Java Code Formatter

Prettify and indent Java source code with bracket alignment.

Encoders

Encoders→

Base64 Encoder & Decoder

Encode and decode Base64 strings and files (URL-safe variant supported).

Encoders→

HTML Entity Encoder & Decoder

Encode special characters to HTML entities or decode them back to plain text.

Text

Text→

Regex Tester

Test JavaScript regular expressions with live match highlighting and a cheatsheet.

Text→

Markdown Previewer

Live GitHub-flavored Markdown preview with side-by-side editing.

Text→

Diff Checker

Compare two pieces of text and see line-by-line and word-level differences.