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DevHexDraw: Free Online Diagram Tool
Create architecture diagrams, flowcharts, and visual maps right in your browser. Free, no login required.
Microsoft Power Platform Tools
Browser extensions and online tools built for Power Automate makers
MakerOps Radar
Monitor Power Automate flow health, run history, error trends, and connection status across your environment from a browser side panel.
Flow Studio Pro
Safer Power Automate flow JSON editing with backups, diffing, validation, redaction, and readiness checks from a focused browser side panel.
Expression Helper
Explain, lint, fix, search, and insert Power Automate expressions directly inside the cloud flow designer without leaving the browser.
Error Explainer
Explain Power Automate cloud flow errors in plain English and get practical fixes for designer, runtime, connection, and connector failures.
HTML Preview
Preview HTML email content directly within the Power Automate cloud flow designer. Renders your HTML safely in a sandboxed panel.
FlowDoc Pro
Generate Power Automate flow documentation, diagrams, runbooks, handover checklists, and exportable reports locally in your browser.
FlowLens AI
Screen-aware AI troubleshooting assistant for Power Automate, PAD, Power Platform, and Microsoft 365 makers. Bring your own API key. Supports OpenAI, Gemini, OpenRouter, Kimi, and custom providers.
Power Platform Web Toolkit
Free interactive tools to build, debug, and reference Power Automate flows faster
OData Filter Builder
Build SharePoint and Dataverse OData filter expressions visually and copy the exact query string.
Recurrence Builder
Configure schedule triggers visually and get the JSON block ready to paste into your flow.
Expression Reference
Browse all 65 PA expression functions with signatures, parameters, and working examples.
Error Code Lookup
Look up any Power Automate error code for causes and step-by-step fixes.
Connector Reference
Browse 40+ connectors with triggers, actions, and licence requirements at a glance.
Document & PDF
HTML Email Tester
Preview HTML email snippets and flag common email-client compatibility issues.
PDF to Images
Convert each page of a PDF into a PNG or JPEG image: runs entirely in your browser
PDF to Text
Extract all text content from a PDF file without any server upload
HTML to PDF
Paste HTML and download it as a formatted PDF document instantly
Merge PDF Files
Drag and drop multiple PDFs to merge them into a single file: no upload needed
Word to HTML
Upload a .docx file and convert it to clean, readable HTML instantly
Word to Plain Text
Extract plain text from any .docx Word document: no Office needed
HTML to Word
Convert HTML content into a downloadable .docx Word document
Markdown to Word
Convert Markdown text into a properly formatted .docx Word document
Word to PDF
Convert a .docx Word document to a PDF file: entirely in your browser
PDF to Word
Extract text from a PDF and export it as a downloadable .docx Word document
PDF to HTML
Extract content from a PDF and convert it to clean HTML: preview and download
Markdown to PDF
Paste Markdown and download it as a formatted PDF document instantly
Developer Reference
HTTP Headers Reference
Searchable list of all HTTP headers with descriptions and examples
HTML Entities Reference
Search by name or character and copy any HTML entity code instantly
ASCII Table
Full ASCII reference showing decimal, hex, binary, and character columns
MIME Types Reference
Search by file extension or type and get the correct MIME string
Regex Cheatsheet
Interactive regex cheatsheet where you can click patterns to test them live
Git Commands Cheatsheet
Searchable reference of essential Git commands with examples
SQL Reference
Searchable SQL keyword and function reference with syntax examples
Color Names Reference
All CSS named colors with hex values, RGB values, and visual swatches
JSON & Data
JSON Formatter
Beautify and format JSON with customizable indentation
JSON Validator
Validate JSON syntax and get detailed error messages
JSON to CSV
Convert JSON arrays and objects into CSV format
JSON to XML
Transform JSON data into well-formed XML
JSON to YAML
Convert JSON data to YAML format for config files
CSV to JSON
Convert CSV files and text into JSON arrays
CSV Formatter
Format and preview CSV data in a clean table view
YAML to JSON
Convert YAML configuration files to JSON
Data Pretty Printer
Auto-detect and pretty print JSON, YAML, or XML data
Data Minifier
Minify and compress JSON to reduce file size
JSON Schema Validator
Validate JSON against a JSON Schema and find missing fields, type mismatches, and enum errors.
JSON Diff
Compare two JSON objects and highlight added, removed, and changed keys side by side
JSONPath Tester
Test JSONPath expressions against JSON data and see matching results instantly
JSON to SQL INSERT
Generate SQL INSERT statements from a JSON array, supports MySQL, PostgreSQL, SQLite, and SQL Server
Encoding / Decoding
Base64 Encode
Encode text or files to Base64 format
Base64 Decode
Decode Base64 strings back to readable text
URL Encode
Encode URLs and query strings for safe transmission
URL Decode
Decode percent-encoded URLs back to readable form
HTML Encode
Convert special characters to HTML entities
HTML Decode
Convert HTML entities back to readable characters
JWT Decoder
Decode and inspect JWT token header, payload, and signature
Unicode Converter
Convert text to Unicode code points and back
ASCII Converter
Convert text to ASCII codes and back
Binary Converter
Convert text, decimal, hex, and octal to binary and back
Time & Date
Timestamp Converter
Convert Unix timestamps to human-readable dates and back
Date Difference Calculator
Calculate the exact difference between two dates
Time Zone Converter
Convert times across different time zones worldwide
Cron Expression Generator
Build cron expressions visually with a friendly UI
Cron Expression Reader
Decode and explain cron expressions in plain English
ISO Date Formatter
Format dates to ISO 8601 standard and other date formats
Duration Calculator
Add or subtract durations and calculate time spans
Countdown Generator
Create a countdown to any future date or event
Date Difference Calculator
Calculate the exact difference between two dates, years, months, weeks, days, and business day count
Color & UI
HEX to RGB
Convert hexadecimal color codes to RGB and HSL values
RGB to HEX
Convert RGB color values to hexadecimal color codes
Color Picker
Pick colors visually and get HEX, RGB, and HSL values
Gradient Generator
Create CSS gradients with a visual builder
Contrast Checker
Check WCAG color contrast ratios for accessibility compliance
Palette Generator
Generate harmonious color palettes from a base color
Shadow Generator
Create CSS box-shadow and text-shadow with a visual editor
Color Format Converter
Convert any color between HEX, RGB, RGBA, HSL, HSLA, HSV, CMYK, and CSS formats instantly
Text & Code
Log Formatter
Format JSON lines and clean common plain-text logs for easier reading and sharing.
Stack Trace Beautifier
Parse stack traces into readable frames with function names, files, lines, and columns.
Text Diff Checker
Compare two pieces of text and highlight the differences
Code Diff Tool
Side-by-side code comparison with syntax highlighting
Word Counter
Count words, characters, sentences, and reading time
Remove Duplicate Lines
Remove duplicate lines from text while preserving order
Case Converter
Convert text between camelCase, snake_case, UPPER CASE, and more
Text Cleaner
Remove extra spaces, special characters, and clean up text
Regex Tester
Test regular expressions with live matching and highlighting
Regex Generator
Generate common regex patterns for emails, URLs, phones, and more
Code Formatter
Format and beautify HTML, CSS, and JavaScript code
Code Minifier
Minify and compress HTML, CSS, and JavaScript
Markdown Table Generator
Build Markdown tables visually, edit cells, set alignment, import CSV, and copy the Markdown output
Lorem Ipsum Generator
Generate placeholder lorem ipsum text by paragraph, sentence, or word count
Slug Generator
Turn any title or phrase into a clean URL-safe slug
Text to Morse Code
Encode and decode Morse code from any text
Palindrome Checker
Check if a word or phrase reads the same forwards and backwards
String Escaper
Escape and unescape strings for JSON, SQL, HTML, and URLs
Security
JWT Signature Verifier
Verify HS256, HS384, and HS512 JWT signatures locally with a shared secret.
Certificate Chain Viewer
Paste a PEM certificate chain, count certificate blocks, and create local SHA-256 fingerprint previews.
Password Generator
Generate strong, random passwords with custom rules
Password Strength Checker
Check how strong your password is and get improvement tips
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes
Hash Checker
Compare and verify file or text hashes
Random Token Generator
Generate cryptographically secure random tokens and secrets
SSH Key Generator
Generate ECDSA or RSA key pairs in your browser using the Web Crypto API, never sent to any server
JWT Generator
Build and sign JWT tokens with a chosen algorithm and secret
bcrypt Hash Generator
Generate and verify bcrypt password hashes in the browser
TOTP Code Generator
Generate time-based one-time passwords like Google Authenticator
RSA Key Generator
Generate RSA public and private key pairs in your browser
CSP Builder
Visual Content Security Policy header generator, toggle directives and sources, copy the ready-to-use header
Certificate Decoder
Paste a PEM certificate and decode its fields, subject, issuer, validity dates, SANs, and key usage
Password Strength Checker
Check password entropy and strength in real time, crack time estimates, pattern detection, improvement tips
Developer Utilities
Environment Variable Diff
Compare two .env files and spot missing keys or changed values between environments.
Dockerfile Linter
Check Dockerfiles for common reproducibility, security, and maintainability issues.
Kubernetes YAML Validator
Validate Kubernetes YAML for basic required fields, deployment selectors, and risky image tags.
SQL Query Explainer
Break SQL queries into readable clauses so joins, filters, grouping, and ordering are easier to inspect.
UUID Generator
Generate UUID v1, v4, and v5 identifiers
GUID Generator
Generate Windows-style GUIDs for .NET and COM applications
Token Counter
Count tokens for GPT-4, Claude, Llama, and Gemini models with cost estimates
README Generator
Fill in project details and generate a professional GitHub README.md with badges, features, and more
Nginx Config Generator
Generate nginx server block configs for static sites, reverse proxies, Node.js apps, and PHP with SSL support
.htaccess Generator
Generate Apache .htaccess rules for HTTPS redirects, caching, security headers, and more
Docker Compose Validator
Validate and analyse docker-compose.yml files, checks syntax, services, ports, and networks
URL Parser
Parse any URL into its components: protocol, hostname, port, path, query params, and hash
cURL to Code
Convert cURL commands into JavaScript fetch, Axios, Python requests, or PHP code
.gitignore Generator
Generate a .gitignore file for your project by selecting languages, frameworks, and editors
Meta Tag Generator
Generate HTML meta tags for SEO, Open Graph (Facebook), and Twitter Cards
API Request Tester
Test HTTP API endpoints with custom headers and request body
HTTP Header Viewer
Inspect and decode HTTP request and response headers
IP Lookup Tool
Look up geolocation, ISP, and details for any IP address
User Agent Parser
Parse and analyze browser user-agent strings
DNS Lookup
Query DNS records including A, AAAA, MX, CNAME, and TXT
Port Checker
Check if a port is open or closed on any host
QR Code Generator
Generate QR codes for URLs, text, WiFi, and more
QR Code Reader
Scan and decode QR codes from images or your camera
Mock Data Generator
Generate realistic fake data, names, emails, addresses, dates, UUIDs, as JSON or CSV for testing and prototyping
SQL Formatter
Format and prettify SQL queries, or minify them to a single line. Keywords are automatically uppercased.
XML Formatter and Validator
Format, minify, and validate XML documents in your browser. Detects syntax errors and shows the line that failed.
JSON Schema Generator
Paste a sample JSON object and instantly get a JSON Schema. Includes a Power Automate mode for the Parse JSON action.
.env File Parser
Parse .env files into a table or JSON, or convert a JSON object back to .env format. Strips comments and handles quoted values.
Aspect Ratio Calculator
Calculate, simplify, and scale aspect ratios for images, videos, and UI elements. Includes common presets like 16:9, 4:3, and 1:1.
Prompt Builder
Build structured LLM prompts with system, user, and assistant sections, copy as text or JSON
AI Model Comparator
Side-by-side comparison of major LLM models, context window, pricing, strengths, and knowledge cutoff
Prompt Diff
Compare two LLM prompt versions side by side, see added, removed, and unchanged lines at a glance
Percentage Calculator
Three percentage calculators in one: X% of Y, X is what % of Y, and % change from X to Y
SQL to MongoDB
Translate SQL WHERE clauses to MongoDB filter syntax, supports =, !=, IN, LIKE, AND, OR, NULL checks
DB Schema Visualizer
Paste CREATE TABLE SQL and visualize your database schema, tables, columns, types, and foreign key relationships
GitHub Actions Validator
Validate GitHub Actions workflow YAML, check required keys, step definitions, trigger formats, and common mistakes
Kubernetes Linter
Lint Kubernetes manifest YAML, validate required fields, container specs, resource limits, and best practices
Makefile Generator
Generate Makefiles for Node.js, Python, Go, Rust, and Docker projects, pick targets, set variables, download
DevHexDraw
Free browser-based diagram editor for architecture diagrams, flowcharts, and system sketches, hand-drawn style, infinite canvas, no sign-up
Mind Map
Visual brainstorming tool. Build a mind map with branches and ideas, export to Markdown or JSON
Dev Task List
A dopamine-releasing developer task manager with categories, priorities, subtasks, progress tracking, and satisfying completion animations
Penalty Shootout
Take a break and play a penalty shootout game. Aim inside the goal, charge your shot, and try to beat the keeper. 5 kicks per round.
Image & Media
HTML to Image Converter
Convert any HTML file to JPEG, PNG or WebP image with one click. No server, runs in your browser.
Image Format Converter
Convert images between PNG, JPEG, WebP, and GIF formats in your browser
Image Compressor
Compress images client-side with quality control: no upload to any server
HEIC to JPG Converter
Convert iPhone HEIC and HEIF photos to JPG or PNG in your browser. Batch mode, quality slider, ZIP download, no upload
Image to PDF
Combine one or more images into a single PDF file: 100% in your browser
SVG Optimizer
Paste SVG code and get a minified, cleaned output instantly
Image to Base64
Convert any image to a Base64 data URI for embedding in HTML or CSS
Base64 to Image
Paste a Base64 data URI and preview or download the original image
Image Resizer
Resize images in your browser with no server upload required
Favicon Generator
Upload a PNG and generate all favicon sizes ready for your site
OG Image Previewer
Preview how any URL looks when shared on Twitter, LinkedIn, and Slack
Favicon Generator
Generate favicon PNGs from text initials or an uploaded image, download ready-to-use 32x32 and 192x192 icons
CSS & Design
Accessibility Audit Snippet
Audit small HTML snippets for missing alt text, unlabeled controls, and heading-order issues.
CSS Animation Generator
Build CSS keyframe animations visually, choose a preset, tweak timing and duration, copy the CSS
Glassmorphism Generator
Generate glassmorphism CSS with live preview, adjust blur, opacity, saturation, and border radius
CSS Gradient Generator
Build linear and radial gradients visually and copy the CSS
Box Shadow Generator
Create CSS box-shadow values with sliders and live preview
Border Radius Generator
Generate CSS border-radius values visually with live preview
Flexbox Playground
Interactively explore all CSS flexbox properties with live output
CSS Grid Generator
Define grid rows and columns visually and copy the CSS
Tailwind Class Converter
Enter a CSS property and get the equivalent Tailwind CSS class
CSS Minifier
Minify and compress CSS to reduce file size
CSS Formatter
Beautify and format compressed or minified CSS
Clip Path Generator
Build CSS clip-path polygon and circle shapes visually
Typography Scale
Generate a harmonious CSS type scale from a base size and ratio, output as CSS variables or Tailwind config
CSS Specificity Calculator
Calculate and visualize CSS selector specificity, IDs, classes, elements, with sorting and comparison
JavaScript & Code
OpenAPI to TypeScript Client
Generate lightweight TypeScript interfaces and fetch helpers from an OpenAPI JSON or YAML document.
Online HTML Editor
Write, edit and run HTML, CSS and JavaScript code with a live browser preview
JS Minifier
Minify and compress JavaScript to reduce bundle size
JS Formatter
Beautify and format minified or compressed JavaScript
JSON to TypeScript
Paste JSON and get a TypeScript interface automatically
JSON to Zod Schema
Generate a Zod validation schema from a sample JSON object
JSON to Go Struct
Convert JSON to Go struct definitions with proper types
Markdown Previewer
Write Markdown on the left and see live rendered HTML on the right
HTML to Markdown
Convert HTML markup to clean Markdown format
Markdown to HTML
Convert Markdown text to HTML output with live preview
Network & API
OpenAPI / Swagger Viewer
Paste OpenAPI JSON or YAML and browse API title, version, paths, methods, and operation summaries.
HTTP Request Builder
Build HTTP requests with method, URL, headers, and body, then copy a ready-to-run cURL command.
HAR File Viewer
Inspect HAR exports, summarize requests, status codes, errors, URLs, and recorded timings.
CORS Header Tester
Check what CORS headers a URL returns and debug cross-origin issues
HTTP Status Code Reference
Searchable reference for all HTTP status codes with explanations
Webhook Tester
Get a temporary URL to inspect and debug incoming webhook payloads
Cron Expression Builder
Build cron schedule expressions visually with human-readable output
GraphQL Explorer
Paste a GraphQL schema and build queries interactively
SSL Certificate Checker
Enter a domain and see its SSL certificate details and expiry date
Converters
Number Base Converter
Convert numbers between decimal, binary, octal, and hexadecimal
Roman Numeral Converter
Convert between Arabic numbers and Roman numerals instantly
Temperature Converter
Convert temperatures between Celsius, Fahrenheit, and Kelvin
Unit Converter
Convert length, weight, area, and speed across all major units
Currency Formatter
Format any number as a currency for any country and locale
Bytes / KB / MB / GB Converter
Convert between bytes, kilobytes, megabytes, gigabytes, and terabytes
Unit Converter
Convert between length, weight, temperature, area, volume, speed, data size, and time units instantly
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