GraphQL Formatter
Format query/mutation (graphql). 100% free, runs locally in your browser—nothing is uploaded to our servers.
OpenAPI Viewer
Tree-view browse and search Swagger JSON. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Properties ↔ JSON
Convert between Java .properties and JSON. 100% free, runs locally in your browser—nothing is uploaded to our servers.
.editorconfig
Generate EditorConfig from tech stack presets. 100% free, runs locally in your browser—nothing is uploaded to our servers.
XML Formatter
General XML validation and indentation. 100% free, runs locally in your browser—nothing is uploaded to our servers.
SemVer Compare
Version validity, ordering, and diff (semver). 100% free, runs locally in your browser—nothing is uploaded to our servers.
Mermaid Preview
Render flowchart/sequence diagram source (mermaid). 100% free, runs locally in your browser—nothing is uploaded to our servers.
Nginx Formatter
Format/beautify Nginx config files. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Docker Run → Compose
Convert docker run command to docker-compose.yml. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Regex Cheatsheet
Common regex patterns reference. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Fake Data Generator
Generate fake data like names, emails, addresses. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Code Deobfuscate
JS code beautifier/deobfuscator (simple formatting). 100% free, runs locally in your browser—nothing is uploaded to our servers.
cURL to Code
Convert cURL commands to Python/JavaScript/Go/PHP/Java code. 100% free, runs locally in your browser—nothing is uploaded to our servers.
CSS Box Shadow Generator
Visual box-shadow editor with multi-layer support and live preview. 100% free, runs locally in your browser—nothing is uploaded to our servers.
CSS Border Radius Generator
Adjust each corner independently with live preview. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Flexbox Playground
Visual Flex property editor with live layout preview. 100% free, runs locally in your browser—nothing is uploaded to our servers.
CSS Gradient Generator
Linear/radial gradients with adjustable color stops and angle. 100% free, runs locally in your browser—nothing is uploaded to our servers.
CSS Animation Generator
Visual keyframes editor with preset animations. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Color Blindness Simulator
Simulate protanopia, deuteranopia, tritanopia, and achromatopsia. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Protobuf Decoder
Decode Base64/Hex protobuf data without schema. 100% free, runs locally in your browser—nothing is uploaded to our servers.
htpasswd Generator
Apache auth file generation, bcrypt/SHA algorithms. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Code Screenshot
Code syntax highlighted screenshot image. 100% free, runs locally in your browser—nothing is uploaded to our servers.
CSR Generator
Generate CSR and private key pair. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Code Playground
HTML/CSS/JS live preview and execution.
Directory Tree Generator
Generate ASCII tree text from folder structure.
KV to Code
Convert key-value pairs to variable definitions in various languages.
File Hash Calculator
Drag & drop files to calculate SHA-1/256/512 hash.
Endianness Converter
Convert between Big-Endian and Little-Endian.
Ones/Twos Complement
Show original/ones/twos complement for a given integer and bit width.
SSL Certificate Generate
Generate self-signed SSL key pairs and fingerprints.
PFX to PEM Converter
Upload .pfx/.p12 file, parse and export certificate & private key PEM. 100% free, runs locally in your browser—nothing is uploaded to our servers.
HTTP Request Tester
Send HTTP requests and view response status, headers & body. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Code Formatter
Multi-language code formatter for JS/TS/HTML/CSS/JSON/XML/SQL/Python with adjustable indent and wrap. 100% free, runs locally in your browser—nothing is uploaded to our servers.
JWT Decode
Parse header/payload as JSON (signature not verified). 100% free, runs locally in your browser—nothing is uploaded to our servers.
SQL Formatter
Beautify and minify (sql-formatter). 100% free, runs locally in your browser—nothing is uploaded to our servers.
.gitignore
Select and merge common templates. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Compress / Decompress
Gzip, Deflate, Brotli (streaming API). 100% free, runs locally in your browser—nothing is uploaded to our servers.
Cron Explainer
Convert 5-field cron expression to human-readable description. 100% free, runs locally in your browser—nothing is uploaded to our servers.
chmod
Convert between octal and rwx notation. 100% free, runs locally in your browser—nothing is uploaded to our servers.
IPv4 Subnet
CIDR network/broadcast/host range. 100% free, runs locally in your browser—nothing is uploaded to our servers.
IPv6 Subnet
CIDR start/end and address count (ip-address). 100% free, runs locally in your browser—nothing is uploaded to our servers.
X.509 Certificate
PEM parse and SHA-256 fingerprint (@peculiar/x509). 100% free, runs locally in your browser—nothing is uploaded to our servers.
IEEE 754
Float32/64 hexadecimal with exponent and mantissa. 100% free, runs locally in your browser—nothing is uploaded to our servers.
Base Converter
Binary/octal/decimal/hex and big integers (BigInt). 100% free, runs locally in your browser—nothing is uploaded to our servers.