Developer Tools
Simplified & Secure
A collection of 54+ essential utilities for developers. Format JSON, encode strings, generate UUIDs, and more.
Popular Tools
JSON Formatter
Format, validate & minify JSON
JSON ↔ CSV
Convert between JSON and CSV formats
Diff Checker
Compare two texts line by line
Base64 Encoder
Encode/decode Base64, Hex, Binary
URL Encoder
URL encode/decode special characters
JWT Decoder
Decode JWT tokens client-side
Markdown → HTML
Convert Markdown to HTML with preview
Timestamp Converter
Convert Unix timestamps to dates
Cron Explainer
Explain cron expressions in plain English
Text Case Converter
Convert text between case formats
JSON Tools
Encoders
Base64 Encoder
Encode/decode Base64, Hex, Binary
URL Encoder
URL encode/decode special characters
JWT Decoder
Decode JWT tokens client-side
Markdown → HTML
Convert Markdown to HTML with preview
Unicode ↔ ASCII
Escape/Unescape Unicode
Env Encoder
Encode .env to K8s Secrets
PDF to Base64
Convert PDF to Base64 string
Base64 to PDF
Convert Base64 to PDF file
Date & Time
Text Utilities
Text Case Converter
Convert text between case formats
Regex Playground
Test regex patterns with live highlighting
Text Counter
Count words, characters, lines & more
Lorem Ipsum Generator
Generate placeholder text
Slug Generator
Convert text to URL-friendly slugs
HTML Entity Encoder
Encode/decode HTML entities
Text Reverser
Reverse text, lines or words
Line Sorter
Sort lines alphabetically
Bulk Text Replacer
Find and replace in text
Generators
Design Tools
Converters
CSV to Excel
Convert CSV files to Excel (XLSX)
YAML ↔ JSON
Convert between YAML and JSON
OpenAPI to JSON
Convert OpenAPI YAML to JSON
Excel to JSON
Convert Excel files to JSON
Excel to CSV
Convert Excel files to CSV
XML ↔ JSON
Convert between XML and JSON
TSV ↔ JSON
Convert between TSV and JSON
TSV ↔ CSV
Convert between TSV and CSV
CSV to HTML
Convert CSV to HTML table
JSON to HTML
Convert JSON to HTML table
Number Base Converter
Convert Binary, Octal, Decimal, Hex
Text ↔ Binary
Convert Text to Binary, Hex, ASCII
Code Tools
Code Minifier
Minify HTML, CSS, and JS
Dockerfile Formatter
Format and clean Dockerfiles
CSS Beautifier
Format and beautify CSS code
HTML Beautifier
Format and beautify HTML code
JS Beautifier
Format and beautify JavaScript
XML Beautifier
Format and beautify XML code
SQL Formatter
Format and beautify SQL queries
Web Tools
Security
Privacy First
All tools run entirely in your browser. No data is ever sent to any server. Your code, tokens, and sensitive information stay on your device.
Fast & Reliable
No network requests means instant results. Tools work offline and are always available when you need them.
Built for Developers
Designed with developers in mind. Clean interfaces, keyboard shortcuts, and features that save you time every day.