Tools
Format a payload, decode a token, check a cron line before it goes to production. Every tool is free, runs entirely in your browser, and sends nothing you paste to a server.
Standard Library
JSON Formatter and Validator
Security
JWT Decoder
Standard Library
Regex Tester
Tooling
Cron Expression Explainer
Standard Library
Laravel APP_KEY and Secret Generator
Web
Base64 Encoder and Decoder
APIs
URL Encoder and Decoder
Security
SHA Hash Generator
Tooling
Unix Timestamp Converter
Tooling
chmod Calculator
Databases
UUID Generator
APIs
HTTP Status Code Reference
Standard Library
Case Converter
Web
URL Slug Generator
Tooling
Word and Character Counter
Tooling
Text Diff Checker
Tooling
Sort, Dedupe and Clean Lines
Web
Lorem Ipsum Generator
Tooling
String Escaper for Code
Web
HTML Entity Encoder and Decoder
Tooling
Unicode Character Inspector
Tooling
Whitespace and Invisible Character Cleaner
Web
Text to Binary and Hex Converter
Tooling
Markdown Table Generator
Databases
List to Array or SQL IN Clause
DevOps
YAML to JSON Converter
Tooling
CSV to JSON Converter
Standard Library
JSON to TypeScript Types
Standard Library
JSON to PHP Array
Tooling
JSON to Go Struct
APIs
JSON Schema Generator
APIs
JSON Diff
APIs
JSONPath Tester
Web
XML Formatter and Validator
APIs
XML to JSON Converter
Databases
SQL Formatter
Tooling
TOML to JSON Converter
DevOps
.env File Parser and Converter
APIs
Query String to JSON
Databases
JSON or CSV to SQL INSERT
Standard Library
PHP Unserialize and Serialize
Standard Library
JSON to Zod Schema
Web
HTML Formatter and Minifier
Web
CSS Beautifier and Minifier
Security
HMAC Generator and Verifier
Security
MD5 and CRC32 Hash Generator
Security
File Checksum Calculator
Security
Password Strength Checker
Security
RSA and ECDSA Key Pair Generator
Tooling
SSH Key Generator
Security
TOTP 2FA Code Generator
Security
SSL Certificate Decoder
Security
CSR Decoder
Security
JWT Encoder and Verifier
DevOps
.htpasswd Generator
Security
Subresource Integrity Hash Generator
Standard Library
Laravel Encrypt and Decrypt
Security
Hash Type Identifier
DevOps
IPv4 Subnet Calculator
DevOps
IPv6 Expand, Compress and Subnet Tool
DevOps
IP Address Converter
DevOps
IP in CIDR Range Checker
Web
User-Agent Parser
APIs
curl to Code Converter
Security
Cookie and Set-Cookie Parser
Performance
Cache-Control Header Explainer
Security
Content-Security-Policy Evaluator
Security
Security Headers Generator
APIs
CORS Configuration Generator
APIs
Basic Auth Header Generator
Web
robots.txt Tester
DevOps
Nginx Config Generator
DevOps
docker run to Docker Compose
DevOps
Dockerfile Linter
Tooling
Crontab Generator
Tooling
systemd Service Generator
DevOps
Kubernetes Manifest Generator
Tooling
.gitignore Generator
Standard Library
Supervisor Config Generator
Tooling
SSH Config Generator
Standard Library
PHP-FPM pm.max_children Calculator
Databases
MySQL InnoDB Tuning Calculator
Databases
PostgreSQL Tuning Calculator
Tooling
find Command Builder
Tooling
tar Command Builder
DevOps
rsync Command Builder
DevOps
Firewall Rule Generator
Tooling
Git Undo Helper
Tooling
logrotate Config Generator
Web
JSON to XML Converter
Standard Library
Flatten JSON to Dot Notation
Tooling
JSON to Python Class Generator
Tooling
JSON to Java Class Generator
Tooling
JSON to C# Class Generator
Tooling
JSON to Rust Struct Generator
Tooling
JSON to Kotlin Data Class Generator
Tooling
JSON to Swift Codable Generator
Tooling
NDJSON to JSON Converter
APIs
JSON Schema Validator
DevOps
YAML Formatter and Validator
Tooling
JSON Viewer
Web
HTML Table to CSV Converter
Standard Library
JavaScript Object to JSON Converter
Standard Library
PHP Array to JSON Converter
Tooling
Python Dict to JSON Converter
Standard Library
HTML to JSX Converter
Web
HTML to Markdown Converter
Tooling
Regex Explainer
Testing
XPath Tester
Testing
CSS Selector Tester
Web
Strip HTML Tags
Standard Library
JSON Key Case Converter
Standard Library
Sort JSON Keys
APIs
GraphQL Formatter
Tooling
Markdown Table of Contents Generator
DevOps
.env File Diff
Databases
CREATE TABLE Generator From JSON or CSV
Standard Library
SQL to Laravel Migration Converter
Databases
MySQL to PostgreSQL Schema Converter
DevOps
Database URL Parser
Databases
Database User and GRANT Generator
Databases
MongoDB ObjectId Decoder
Architecture
Snowflake ID Decoder
Databases
Connection Pool Size Calculator
Databases
MySQL EXPLAIN Analyzer
Databases
PostgreSQL EXPLAIN ANALYZE Reader
Databases
MySQL Slow Query Log Analyzer
Databases
pg_hba.conf Generator
Databases
mysqldump and pg_dump Command Builder
Databases
UUID to BINARY(16) Converter
DevOps
Docker Compose to docker run Converter
DevOps
Dockerfile Generator
DevOps
docker-compose.yml Generator
DevOps
Kubernetes CPU and Memory Calculator
DevOps
Kubernetes Ingress Generator
DevOps
Kubernetes CronJob Generator
Security
AWS IAM Policy Generator
DevOps
AWS ARN Parser
DevOps
GitHub Actions Workflow Generator
DevOps
GitLab CI Pipeline Generator
DevOps
Docker Image Reference Parser
Tooling
cloud-init User Data Generator
DevOps
.dockerignore Generator
DevOps
Caddyfile Generator
DevOps
Apache Virtual Host Generator
Web
.htaccess Generator
DevOps
HAProxy Config Generator
DevOps
Traefik Docker Labels Generator
DevOps
Nginx Config Formatter
DevOps
Nginx Location Match Tester
DevOps
Access Log Analyzer
Security
TLS Configuration Generator
Standard Library
php.ini Settings Generator
Web
Redirect Map Generator
DevOps
Nginx Rate Limiting Generator
Performance
Varnish VCL Generator
Security
X-Forwarded-For Client IP Resolver
Tooling
umask Calculator
Tooling
sed Command Tester
Tooling
awk Column Extractor
Tooling
SSH Tunnel Command Builder
Tooling
fstab Entry Generator
Tooling
sudoers Rule Generator
Tooling
Bash Argument Parser Generator
Tooling
systemd Timer Generator
Tooling
journalctl Command Builder
Tooling
Bash and zsh Prompt Generator
Tooling
ANSI to HTML Converter
Tooling
RAID Calculator
Tooling
Sequence Generator
DevOps
DNS Zone File Generator
Security
SPF Record Generator
Security
DMARC Record Generator
Security
DKIM Key and Record Generator
Security
DMARC Report Viewer
Tooling
Email Header Analyzer
Security
CAA Record Generator
Web
Email Address Validator
Tooling
Quoted Printable Decoder
Security
MTA-STS Policy Generator
DevOps
DNS TXT Record Splitter
Tooling
SMTP Reply Codes
Web
DNS Record Types
DevOps
MAC Address Formatter
DevOps
EUI-64 IPv6 Address Generator
DevOps
IP Range to CIDR Converter
DevOps
CIDR Merger
DevOps
VLSM Subnet Calculator
DevOps
IPv6 Subnet Calculator
DevOps
CIDR to Netmask Cheat Sheet
Security
Reserved IP Address Ranges
Performance
Bandwidth Delay Product Calculator
Security
nmap Command Builder
Tooling
tcpdump Filter Builder
DevOps
WireGuard Config Generator
Tooling
HAR File Viewer
APIs
OpenAPI Spec Viewer
APIs
Postman Collection to curl
APIs
Raw HTTP Request Parser
Security
Webhook Signature Verifier
Security
PKCE Code Challenge Generator
Security
OAuth Authorization URL Builder
Tooling
SAML Decoder
Architecture
Exponential Backoff Calculator
APIs
JSON Patch Tool
Standard Library
Laravel Signed URL Verifier
APIs
Route Pattern Tester
Security
CORS Preflight Checker
Security
JWT RS256 and ES256 Signer
Security
bcrypt Hash Generator
Security
PBKDF2 Key Derivation
Security
AES Encryption Tool
Security
RSA Encrypt and Decrypt
Security
Self-Signed Certificate Generator
Security
CSR Generator
Security
Certificate and Key Matcher
Tooling
SSH Key Fingerprint
Security
SHA-3 Hash Generator
Tooling
Checksum Calculator
Security
OpenSSL Command Builder
Security
security.txt Generator
Security
Secret Scanner
Tooling
SHA-512 Crypt Password Hash
Security
JWK to PEM Converter
Testing
Fake Data Generator
Tooling
Random Number Generator
Tooling
Check Digit Calculator
Tooling
IBAN Validator
Web
Placeholder Image Generator
Databases
UUID v5 Generator
Tooling
List Randomizer
Testing
Dummy File Generator
APIs
Sample JSON From JSON Schema
Testing
Regex String Generator
Architecture
Sqids Encoder
Web
QR Code Generator
Web
PX to REM Converter
Web
CSS Box Shadow Generator
Web
CSS Border Radius Generator
Web
CSS Gradient Generator
Web
CSS Clamp Generator
Web
Colour Palette Generator
Web
Colour Blindness Simulator
Web
Cubic Bezier Generator
Web
Flexbox Generator
Web
CSS Grid Generator
Web
CSS Specificity Calculator
Web
Aspect Ratio Calculator
Web
CSS Named Colours
Web
SVG Optimiser
Web
Favicon Generator
Performance
Image Converter and Compressor
Web
Image Cropper
Web
SVG to PNG Converter
Web
Image Colour Picker
Security
EXIF Viewer and Remover
Testing
Image Diff
Security
File Type Detector
Tooling
Hex Viewer
Security
ZIP and tar Archive Inspector
Tooling
Mojibake Fixer and UTF-8 Converter
Web
Avatar Generator
APIs
MessagePack Converter
APIs
Protobuf Decoder
Web
UTM Builder
Web
XML Sitemap Generator
Web
robots.txt Generator
Web
Schema Markup Generator
Web
Google SERP Preview
Web
hreflang Tag Generator
Web
Web App Manifest Generator
Web
Keyword Density Checker
Web
Readability Score Checker
Tooling
What Is My Browser
Web
Social Link Preview
Web
Link Extractor
Web
llms.txt Generator
Web
RSS and Atom Feed Validator
Tooling
ROT13 and Caesar Cipher
Tooling
Morse Code Translator
Tooling
NATO Phonetic Alphabet
Tooling
Find and Replace
Tooling
Split Text and Join Lines
Tooling
Add Prefix or Suffix to Lines
Tooling
Text Wrapper
Tooling
Extract Emails URLs and IPs From Text
Security
Homoglyph Detector
Tooling
String Similarity Calculator
Tooling
ASCII Table Generator
Tooling
Filter Lines Like grep
Security
Shannon Entropy Calculator
Tooling
Align Text Into Columns
Tooling
Conventional Commit Linter
Tooling
.gitattributes Generator
Tooling
Semver Version Sorter
Tooling
Changelog Generator
Tooling
Unified Diff Viewer
Tooling
CODEOWNERS Tester
Tooling
.editorconfig Generator
Tooling
License Generator
Tooling
README Badge Generator
Tooling
Git Remote URL Converter
Tooling
Dependabot Config Generator
Tooling
Git Cheat Sheet
Tooling
Git Branch Name Generator
Tooling
Bitwise Calculator
Standard Library
Number Formatter
Tooling
IEEE 754 Float Inspector
Tooling
Big Integer Calculator
Tooling
Expression Calculator
Performance
Capacity Planner
Performance
Percentile Calculator
Architecture
ID Collision Probability Calculator
Tooling
ISO Week Number Calculator
Tooling
Batch Timestamp Converter
Tooling
Log Timestamp Converter
Tooling
Time Zone List
Tooling
Regex Cheat Sheet
Tooling
Linux Commands Cheat Sheet
Tooling
Vim Cheat Sheet
Tooling
tmux Cheat Sheet
DevOps
Docker Cheat Sheet
DevOps
kubectl Cheat Sheet
Databases
MySQL Data Types
Databases
PostgreSQL Data Types
DevOps
AWS Region Codes
APIs
gRPC Status Codes
Tooling
Bash Parameter Expansion
Standard Library