Community-built utilities to boost your development workflow
Generate a stylish, shareable GitHub profile card with avatar, bio, and stats.
Analyze the emotional tone of any text. Get instant sentiment classification as Positive, Negative, or Neutral with detailed word-level analysis.
Send API requests and view responses directly from your browser.
Brief description of functionality.
Create custom forms with an intuitive drag-and-drop interface. Build forms visually and get clean HTML code instantly.
Create a Hash-based Message Authentication Code using SHA-256. Enter your message and secret key to generate the HMAC securely in your browser.
Explore the Abstract Syntax Tree (AST) of your JavaScript code.
Generate SVG code for basic shapes like circles, rectangles, and ellipses. Customize attributes like color, size, and position.
Upload any image and instantly extract dominant colors with HEX, RGB, and HSL values. Perfect for designers and developers.
Quickly find your final price and savings after applying discounts.
Advanced text analysis tool with real-time word, character, and paragraph counting. Perfect for writers, bloggers, and content creators who need precise text metrics.
Analyze pasted text to find the most frequent words. Includes stopword filtering and CSV export.
Displays ASCII decimal values for each character.
Sort text lines alphabetically and remove duplicates. Perfect for cleaning up lists, organizing data, and removing redundant lines from text files.
Generate customizable placeholder text by words or paragraphs for your design and development projects. Perfect for mockups and prototyping.
Write and preview Markdown in real-time with split-view editor. Export to HTML, MD, or plain text.
Create well-structured commit messages following the Conventional Commits specification. Includes type selection, scope, and emoji support.
Interactive visualization of Git branch history with support for merges and complex flows. Perfect for understanding repository structure.
Format, validate, and beautify JSON data with an interactive tree view and error detection.
Extract links and images from any website using our powerful web scraper. Input a URL and get organized results with detailed statistics and export options.
Calculate dimensions based on aspect ratios. Perfect for responsive design, video dimensions, and screen specifications.
Countdown timer and stopwatch with lap tracking, audio alerts, and keyboard shortcuts.
25-minute work sessions and 5-minute breaks with Start, Pause, Reset controls and an audible alert to boost your focus.
Detect and display complex keyboard shortcuts (e.g., Ctrl+Shift+K). Useful for testing which shortcuts are available in the browser or OS.
Convert dates and times between different timezones with ease. See UTC offsets, daylight savings adjustments, and compare times instantly.
Quickly calculate the number of days, weeks, or months between two dates. Perfect for project planning, deadlines, and scheduling.
Generates a random HEX or RGB color on button click. Shows the color code and a preview box.
Generates a random number within a user-defined min/max range
Encode text to Base64 or decode Base64 strings. Support for text and file conversion.
Convert images to Base64 encoded strings. Perfect for embedding images directly in HTML, CSS, or JSON files.
Upload a JPG/PNG, adjust quality and optionally resize, then compress in-browser and download.
Convert images to WebP format for better web performance. Upload JPG, PNG, GIF, and other formats to get optimized WebP files.
Strip all EXIF metadata from your images to protect privacy. Upload an image and download a clean version without any embedded metadata.
Encode or decode URLs to ensure proper formatting. Convert special characters and spaces for safe URL transmission.
Parse, modify, and rebuild URLs with their query parameters. Add, edit, or remove parameters and generate new URLs with ease.
Generate secure passwords with customizable length and character sets.
A simple tool to convert human-readable dates into Unix timestamps and convert Unix timestamps back into readable date/time.
Create QR codes for URLs, text, WiFi, and more with customizable styling.
Translate a 5-field cron expression into a human-readable
description (e.g., */5 * * * * → "Every 5 minutes").
Find your current location using the browser's Geolocation API and display it on an interactive map with CartoDB tiles.
Convert the hexadecimal to RGB color code in a single click.
Generate Universally Unique Identifiers (UUIDs) instantly for database keys, session IDs, and unique identifiers.
Easily calculate percentages with this intuitive calculator. Find out what is X% of Y in seconds.
Generate harmonious color palettes based on a base color and a chosen harmony rule (monochromatic, analogous, complementary, etc.).
Calculate the square and cube of any number instantly. Perfect for mathematical calculations and learning.
A community-built collection of lightweight, in-browser developer utilities
DevToolkit is an open, static site curated by contributors who enjoy shipping practical tools with zero signup friction. Everything runs in your browser, keeping your workflow fast and secure while staying friendly to new collaborators.
Want to contribute or say hello? Reach us at [email protected].
How we handle your data when you use DevToolkit
DevToolkit runs entirely in the browser and does not require an account. Inputs stay local to your device unless a specific tool explicitly needs network access (rare and clearly labeled).
We do not sell or share your data. If analytics are ever enabled, they will be privacy-friendly, aggregated, and documented in the relevant tool folder.
For any privacy questions, contact [email protected].
Simple usage guidelines for DevToolkit
DevToolkit is provided as-is, without warranties. Use the tools at your own discretion and verify outputs for production workflows.
Do not misuse the tools for illegal activity, abuse shared resources, or attempt to inject malicious code. Respect licenses for any third-party assets noted in individual tool folders.
For support or questions about these terms, email [email protected].