Development
Robots.txt Generator
Create, import, validate, copy and download robots.txt files with a visual rule builder.
Local
Developer toolbox
All developer tools
Search and explore 48 fast, private developer utilities.
Prefer grouped workflows?Explore collectionsShowing 48 tools
Development
NanoID Generator
Generate secure NanoIDs with configurable length, alphabet and quantity directly in your browser.
Local
Development
Unicode Escape Encoder / Decoder
Encode text into Unicode escape sequences or decode escaped Unicode back into readable text.
Local
Development
Slug Generator
Generate clean, SEO-friendly URL slugs from text with customizable separators and normalization options.
NewLocal
Development
Text Case Converter
Convert text between lowercase, uppercase, title case, camelCase, PascalCase, snake_case and other common formats.
NewLocal
Development
Number Base Converter
Convert integers between binary, octal, decimal and hexadecimal.
NewLocal
Development
GitHub Actions Workflow Builder
Generate GitHub Actions workflows with matrices, Docker, artifacts, permissions, validation and production-ready recommendations.
NewLocal
Development
Kubernetes Manifest Builder
Generate Kubernetes Deployments, Services, Ingresses, ConfigMaps and Secrets with validation.
NewLocal
Development
Nginx Reverse Proxy Generator
Generate Nginx reverse proxy configurations with TLS, WebSocket support and security headers.
NewLocal
Development
systemd Service Generator
Generate systemd service units, validate runtime settings and create installation commands.
NewLocal
Development
.gitignore Generator
Generate .gitignore files from language, framework, IDE and operating system templates.
NewLocal
Security
HMAC Generator
Generate and verify keyed message authentication codes with SHA-256, SHA-384 and SHA-512.
NewLocal
Development
SSH Config Builder
Build OpenSSH client configuration blocks, validate options and generate connection commands.
NewLocal
Security
CORS Policy Builder
Build CORS response headers, preflight responses and detect common configuration errors.
NewLocal
Security
Content Security Policy Builder
Build and review Content-Security-Policy headers with visual directives and security warnings.
NewLocal
Development
Dockerfile Analyzer
Analyze Dockerfiles, inspect build stages and detect common image issues.
NewLocal
Development
Docker Image Reference Parser
Parse Docker image references into registry, namespace, repository, tag and digest components.
NewLocal
Development
Docker Run to Compose
Convert docker run commands into Docker Compose YAML.
NewLocal
Development
chmod Calculator
Convert Unix file permissions between octal and symbolic notation.
NewLocal
Development
.env Parser & Editor
Parse, inspect, validate, search and export environment variable files.
NewLocal
JSON
JSON Path Explorer
Explore JSON structures, generate paths and inspect values in an interactive tree.
NewLocal
Development
SemVer Comparator
Compare, validate, sort and evaluate semantic versions and npm-compatible ranges.
NewLocal
API
cURL Builder
Build cURL commands and Fetch API code from structured HTTP requests.
NewLocal
Utilities
Byte Converter
Convert bytes between decimal and binary storage units.
NewLocal
Development
Cookie Parser & Builder
Parse, edit and rebuild Cookie and Set-Cookie HTTP headers.
NewLocal
Development
MIME Type Lookup
Search MIME types by file extension, media type or description.
NewLocal
Development
HTTP Status Code Explorer
Search HTTP response codes and understand what each status means.
NewLocal
Data
YAML Formatter & Validator and YAML ↔ JSON
Format, validate and convert YAML ↔ JSON documents locally.
NewLocal
Development
Cron Expression Parser
Validate cron expressions, explain schedules and preview upcoming executions.
NewLocal
Design
Color Converter
Convert colors between HEX, RGB and HSL with a visual preview.
NewLocal
Encoding
URL & Query String Parser
Parse URLs, inspect their components and edit query parameters.
NewLocal
Development
Diff Checker
Compare two texts and inspect added, removed and unchanged lines.
NewLocal
Development
SQL Formatter
Format and minify SQL queries for multiple database dialects.
NewLocal
Encoding
HTML Encoder & Decoder
Encode special characters as HTML entities or decode them back to text.
NewLocal
Data
XML Formatter & Validator
Format, validate and minify XML documents directly in your browser.
NewLocal
Data
CSV ↔ JSON Converter
Convert CSV data to JSON or transform JSON arrays into CSV.
NewLocal
Development
Markdown Preview
Write Markdown and preview the rendered result instantly.
NewLocal
Generators
QR Code Generator
Generate downloadable QR codes for text, URLs, email and Wi-Fi.
NewLocal
Security
Password Generator
Generate strong and customizable passwords securely in your browser.
NewLocal
Security
Hash Generator
Generate MD5, SHA-1 and SHA-2 hashes from text instantly.
NewLocal
JSON
JSON Formatter and Minifier
Format, validate and beautify JSON instantly and minifier.
PopularLocal
Security
JWT Decoder
Decode JWT headers, payloads and expiration data.
PopularLocal
API
OpenAPI Viewer
Explore and inspect OpenAPI specifications.
PopularLocal
Development
Regex Tester
Test regular expressions against sample text.
PopularLocal
Utilities
UUID Generator
Generate secure UUID values directly in your browser.
NewLocal
Utilities
Timestamp Converter
Convert Unix timestamps into readable dates.
NewLocal
Encoding
URL Encoder & Decoder
Encode text for URLs or decode percent-encoded values instantly.
NewLocal
Encoding
Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 values instantly.
NewLocal