Developer ToolsetDeveloper Tools
Encoders, formatters, converters, and code generators for developers
.env File Generator
Generate .env files with templates for Next.js, Express, Django, Laravel, AWS, Stripe, Firebase, and other platforms
.gitignore Generator
Generate customized .gitignore files by combining templates for languages, frameworks, IDEs, and operating systems
ASCII Art Generator
Convert text and images to ASCII art. Text-to-ASCII with 200+ FIGlet fonts, image-to-ASCII with color output, edge detection, and dithering. Plus shapes and a pre-made art library.
AWS S3 Command Generator
Generate aws s3 sync, cp, and mv commands with the right flags. Build complex S3 CLI commands without memorizing syntax
Cron Expression Builder
Build and validate cron expressions with visual interface
CSV JSON Excel Converter
Convert between CSV, JSON, and Excel formats instantly — six conversion modes with browser-based processing
curl Command Builder
Build curl commands with headers, auth, JSON bodies, and shell-aware quoting for bash, PowerShell, and cmd.exe — plus curl install commands for Windows, macOS, and Linux.
Data Format Converter
Convert between JSON, YAML, XML, TOML, and CSV with real-time validation
Docker Command Builder
Visual Docker command generator for run, build, and compose with security best practices and preset templates
Dockerfile Generator
Generate optimized Dockerfiles with multi-stage builds, security best practices, and templates for Python, Node.js, Go, and Java
Excel to JSON Converter
Convert Excel spreadsheets to JSON with multi-sheet support and custom formatting options
Git Branch Visualizer
Compare Git branching strategies visually. Understand GitFlow, GitHub Flow, and trunk-based development with diagrams and commands.
Grok Pattern Builder & Debugger
Build, test, and debug Grok patterns online with live matching, fix suggestions, and export to regex, Logstash config, and Elasticsearch ingest pipelines.
GUID & UUID Generator
Generate GUIDs and UUIDs (v1, v4, v7) instantly. Bulk generation, format options, and copy to clipboard. Free online tool.
HTML Entity Encoder & Decoder
Encode and decode HTML entities online with XSS prevention analysis. Supports named and numeric entities.
HTTP Request Builder
Interactive developer tool for constructing, sending, and analyzing HTTP requests directly from the browser
JSON Formatter
Format, validate, and minify JSON with syntax highlighting
JSON Validator & Formatter
Validate and format JSON with detailed error messages, tree visualization, and syntax highlighting. Fix JSON errors instantly.
Markdown Preview & Editor
Live markdown editor with instant preview. Supports GitHub Flavored Markdown, tables, code blocks, and task lists.
Mock Data Generator
Generate realistic fake test data (names, emails, addresses, credit cards, UUIDs) with JSON, CSV, and SQL export
Network Latency Calculator
Calculate network latency based on distance and speed.
Nginx Log Analyzer & Pattern Reference
Nginx access & error log format reference, a library of ~15 ready-to-use regex patterns (5xx, 4xx, slow upstreams, bots, timeouts, SSL errors), and a paste-and-test matcher. Generates Alert24 server-agent log-search configs.
Online Diff Checker & Code Compare
Compare text, code, and config files side by side with syntax highlighting. See additions, deletions, and changes instantly.
Online Regex Tester & Debugger
Test regular expressions online with live matching, pattern explanations, and a built-in regex library. Supports JavaScript, Python, and Go.
package.json Generator
Generate package.json files with presets for React, Next.js, Express, testing, Tailwind, and other common configurations
requirements.txt Generator
Generate Python requirements.txt files with popular package presets for Django, FastAPI, Data Science, ML, and more
Semver Calculator
Parse, validate, compare, and increment semantic versions with npm-style range checking
SQL Dialect Translator
Translate SQL between dialects - auto-detects source dialect and converts syntax for MySQL, PostgreSQL, SQL Server, Oracle, SQLite, BigQuery, Redshift, and Snowflake
SQL Formatter
Format and beautify SQL queries with multi-dialect support
SRI Hash Generator
Generate Subresource Integrity hashes for scripts and stylesheets
Timezone Meeting Planner & World Clock
Free meeting planner for distributed teams. Find overlap windows across 38 time zones, schedule calls, convert times, and export to calendar.
User Agent Parser & Analyzer
Parse user agent strings to detect browser, OS, device type, and bots. Analyze Chrome, Firefox, Safari, and Googlebot user agents.
Webhook Payload Generator
Generate webhook payloads with HMAC signatures for Stripe, GitHub, Slack, Shopify, Twilio, SendGrid, Discord and more
Windows FILETIME Converter
Convert Windows FILETIME, LDAP, and Active Directory timestamps to human-readable dates. Batch convert lastLogon, pwdLastSet, and accountExpires values.
YAML to JSON Converter
Convert YAML to JSON or JSON to YAML with full support for comments and anchors