Fast, Private Tools for
Developers & Creators
Convert images, inspect code, format data, and run calculations directly inside your browser. No server queues, no cloud upload delays, and total privacy within your device memory.
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Your documents and code never touch a remote server.
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Executed by your machine hardware in milliseconds.
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No account required, completely free with no paywalls.
Instant Format Converter
Popular Utilities
WebP to PNG Converter
Convert WebP images to high-quality PNG format instantly in your browser. 100% private, free, and no file upload limits.
JSON Formatter & Validator
Beautify, format, validate, and minify JSON data online. Fast syntax highlighting, error detection, and 100% private client-side parsing.
PNG to WebP Converter
Convert PNG images to modern WebP format online. Dramatically compress image file size with adjustable quality and full alpha transparency support.
WebP to JPG Converter
Convert WebP images to standard JPG format instantly in your browser. Pure client-side processing with adjustable JPEG quality and solid white background fill.
Base64 Encoder & Decoder
Encode text and files to Base64 or decode Base64 strings to readable text instantly. Full UTF-8 support, 100% private in-browser processing, and one-click copy.
URL Encoder & Decoder
Encode and decode URLs and query parameters online with percent-encoding. 100% private in-browser tool with full URI component support.
Word & Character Counter
Count words, characters, sentences, paragraphs, and reading time in real-time. Free, private, and unlimited client-side text analysis.
Investment & Return Rate Calculator
Calculate required return rates to turn an investment into a target goal in X years, or project future compound growth with monthly deposits. 100% private in-browser financial tool.
Custom QR Code Generator
Create free, permanent QR codes for URLs, text, Wi-Fi networks, and emails. 100% private in-browser generator with instant PNG and vector SVG download.
Secure Password Generator
Generate strong, cryptographically secure passwords, memorable passphrases, and PINs in your browser using the Web Crypto API. 100% private with live entropy meter.
UUID / GUID Generator
Generate cryptographically random UUIDv4 and time-ordered UUIDv7 identifiers online. Customize hyphens, uppercase, braces, and bulk generation up to 500.
CSV to JSON Converter
Convert CSV spreadsheets and table data into clean, formatted JSON arrays or objects online. 100% private in-browser conversion with file upload, smart type inference, and custom delimiters.
JSON to CSV Converter
Convert JSON arrays and nested data into clean CSV or Excel spreadsheet tables online. 100% private in-browser conversion with dot-notation flattening, custom delimiters, and file download.
JWT Token Decoder & Inspector
Decode and inspect JSON Web Tokens (JWT) safely in your browser. View header parameters, payload claims, and token expiration with complete 100% client-side privacy.
Cryptographic Hash & Checksum Generator
Compute SHA-256, SHA-512, SHA-384, SHA-1, and MD5 hashes simultaneously for text or local files. 100% private in-browser Web Crypto processing with live checksum matching.
Markdown to HTML Converter
Convert Markdown and GitHub Flavored Markdown (GFM) into clean, semantic HTML code online. Features live side-by-side visual preview, table support, and instant file download.
JPG to PNG Converter
Convert JPG and JPEG images to lossless PNG format instantly in your browser. 100% private client-side processing with zero upload limits and high-resolution output.
All-in-One Percentage Calculator
Solve any percentage problem instantly online. Calculate percentage of a number, percentage increase or decrease, percentage difference, and reverse percentages with step-by-step arithmetic.
In-Browser Image Compressor
Compress JPG, PNG, and WebP images directly in your browser without losing visual sharpness. 100% private, adjustable compression quality, live file size preview, and instant downloads.
SVG to PNG Converter
Convert SVG vector images and raw code into crisp, high-resolution PNG raster graphics. 100% private in-browser conversion with custom scaling (1x to 4x), transparent background support, and instant downloads.
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, and PascalCase instantly in your browser. 100% private with live multi-case previews.
SQL Query Formatter
Beautify, format, and minify SQL queries instantly with syntax styling and keyword capitalization.
Date Difference Calculator
Calculate exact time difference between two dates in days, weeks, months, years, and business days.
Bulk Image Resizer
Resize JPG, PNG, and WebP images by pixel dimensions or percentage with aspect ratio lock.
Text Diff & Comparison Tool
Compare two text snippets or code files side-by-side with word-level difference highlighting.
CAGR & Target Growth Calculator
Calculate Compound Annual Growth Rate (CAGR), target end values, and investment growth schedules.
Inflation & Purchasing Power Calculator
Calculate cumulative inflation, purchasing power changes, and future cost of living estimates.
CSS Minifier & Beautifier
Minify CSS code to reduce file size or beautify messy stylesheets with customizable indentation.
XML Formatter & Validator
Format, validate, and minify XML data with syntax error detection and tree indentation.
HTML Entity Encoder & Decoder
Encode special characters to HTML entities or decode entities to plain text in named, decimal, or hex.
Lorem Ipsum Text Generator
Generate custom Lorem Ipsum dummy text by paragraphs, sentences, or words in plain text or HTML.
Unix Timestamp & Date Converter
Convert Unix epoch timestamps to human dates and dates to timestamps. Real-time epoch clock and global timezone comparisons. 100% private developer tool.
Loan EMI & Amortization Calculator
Calculate monthly loan EMI, total interest, and loan payoff with interactive amortization schedules and extra payment modeling.
HEX, RGB, HSL & CMYK Color Converter
Convert colors between HEX, RGB, HSL, HSV, and CMYK in real-time with alpha transparency, WCAG contrast meters, and CSS code presets.
Regular Expression Tester & Debugger
Test and debug regular expressions in real-time with visual match highlighting, capture group extraction, replacement, and cheat sheets.
Aspect Ratio & Dimension Calculator
Calculate aspect ratios, resize image and video dimensions proportionally, and solve missing width or height with real-time visual preview.
JSON Diff & Semantic Comparison Tool
Compare two JSON files semantically with deep structural difference analysis, key sorting, JSONPath markers, and visual split/tree views.
Universal Measurement & Unit Converter
Convert measurements instantly across length, weight, temperature, area, volume, and digital data storage with an all-in-one multi-unit matrix.
HTML Minifier & Markup Formatter
Minify HTML markup to compress page size or beautify messy HTML code with custom indentation. 100% private in-browser tool.
IPv4 Subnet Calculator & CIDR Utility
Calculate IPv4 subnet masks, CIDR prefixes, network boundaries, broadcast addresses, and usable host ranges with bitwise binary telemetry.
YAML to JSON & JSON to YAML Converter
Convert YAML to JSON or JSON to YAML with real-time syntax validation and cloud config presets. 100% private in-browser tool.
Markdown Table Generator & CSV Formatter
Create, edit, and format Markdown tables with an interactive visual grid or paste CSV/Excel data. 100% private in-browser Markdown table generator.
URL Slug Generator & String Normalizer
Generate clean, SEO-optimized URL slugs from titles or text. Handles Unicode transliteration, stop words removal, and batch processing. 100% private in-browser tool.
Secure API Token & Secret Key Generator
Generate cryptographically secure API tokens, secret keys, Hex digests, and Base64URL secrets using CSPRNG. 100% private in-browser security tool.
Linux Chmod Permissions Calculator
Calculate Linux chmod permissions, octal codes, symbolic notation, and SUID/SGID special bits. Real-time visual matrix. 100% private in-browser developer tool.
Crontab Schedule Generator & Explainer
Generate and explain crontab schedules with a visual cron builder. Calculates human-readable descriptions and next 5 run times. 100% private in-browser tool.
HMAC Signature & Authentication Hash Generator
Compute and verify cryptographic HMAC signatures (SHA-256, SHA-512, SHA-384, SHA-1) in Hex, Base64, and Base64URL formats. 100% private in-browser Web Crypto tool.
cURL to Fetch & Code Converter
Convert cURL commands to JavaScript Fetch, Axios, Python Requests, Node.js, PHP, and Go code online. 100% private client-side converter.
Docker Run to Docker Compose Converter
Convert docker run CLI commands into clean docker-compose.yml files instantly. 100% private in-browser tool supporting all flags.
HTML to Markdown Converter
Convert HTML markup and rich text to clean GitHub Flavored Markdown (GFM) instantly. 100% private in-browser text converter.
Base64 to Image & Image to Base64 Converter
Decode Base64 strings to PNG, JPG, or WebP images and encode images into Base64 data URIs. 100% private in-browser image utility.
SQL to JSON Converter
Convert SQL queries, INSERT statements, and database dumps to structured JSON online. 100% private in-browser conversion with multi-table support.
JSON to SQL Converter
Convert JSON arrays and objects to SQL queries, CREATE TABLE schemas, and INSERT statements online. 100% private in-browser conversion with multi-dialect support.
XML to JSON Converter
Convert XML documents, RSS feeds, and SOAP payloads to structured JSON online. 100% private in-browser conversion with attribute preservation.
JSON to XML Converter
Convert JSON arrays and objects to structured XML documents online. 100% private in-browser converter with attribute and CDATA support.
TSV to JSON Converter
Convert TSV and tab-separated spreadsheet data to clean JSON online. Fast, free, 100% private in-browser conversion with instant live preview.
JSON to TSV Converter
Convert JSON arrays and objects to clean tab-separated TSV values online. 100% private in-browser conversion with instant live preview.
JSON to TypeScript Interface Generator
Convert JSON to TypeScript interfaces and types online. Generates clean, strongly-typed interfaces with optional fields, union types, and zero server uploads.
JSON to JSON Schema Generator
Convert JSON to standardized JSON Schema documents online. Supports Draft-07, Draft-2020-12, format inference, required fields, and examples.
Base58 Encoder & Decoder
Encode and decode Base58 strings online. Supports Bitcoin, IPFS, Flickr, and Ripple alphabets, Hex & Text formats, and Base58Check. Fast & 100% client-side.
Hex Encoder & Decoder
Convert text to hex and hex to text online. Supports UTF-8 emojis, custom delimiters (space, 0x, \x, colons), hexdump view, and instant client-side processing.
TOTP 2FA Authenticator Code Generator
Generate TOTP two-factor authentication codes online. Supports Base32 keys, SHA-1/256/512, 6/8 digits, and live countdown timer. 100% private in-browser tool.
Binary Code Translator
Translate binary code to text and convert text to binary online. Supports UTF-8 emojis, custom delimiters, bit density metrics, and instant client-side conversion.
Morse Code Translator & Audio Player
Translate text to Morse code and Morse to text with real-time audio playback, custom WPM speeds, visual flashing beacon, and 100% private client-side conversion.
HTML to JSX Converter
Convert raw HTML and SVG markup to clean React JSX components online. Handles className, inline styles, self-closing tags, and TypeScript. 100% private tool.
Base32 Encoder & Decoder
Encode text and hex to Base32 and decode Base32 strings online. Supports RFC 4648, Crockford, Base32hex, and z-base-32 alphabets. 100% private in-browser tool.
CSS to Tailwind Converter
Convert CSS stylesheets and inline styles to Tailwind CSS utility classes online. Supports Flexbox, Grid, colors, spacing, and arbitrary values. 100% private.
Favicon Generator & PNG to ICO Converter
Generate multi-resolution favicon.ico files, PNG icons, and Apple touch icons online. Convert PNG to ICO with live browser previews and HTML tags. 100% private.
SVG Optimizer & Minifier
Compress, clean, and minify SVG files online. Strip editor metadata, round coordinate decimals, and reduce SVG size up to 70% with live preview. 100% private.
RSA Key Pair Generator
Generate secure RSA public and private key pairs online. Supports 2048, 3072, and 4096-bit keys in PEM and OpenSSH format. 100% client-side privacy.
CSS Gradient Generator
Create beautiful CSS gradients online. Visual editor for linear, radial, and conic gradients with color stops, angle controls, and Tailwind export. 100% free.
Image EXIF & Metadata Scrubber
Remove EXIF data, GPS location, and camera metadata from photos online. Clean JPEG, PNG, and WebP images client-side with zero quality loss. 100% private.
CSS Box Shadow Generator
Generate smooth, realistic CSS box shadows with live preview. Multi-layer shadow maker with Tailwind CSS export, presets, and inset controls. 100% free.
Color Palette Generator
Generate beautiful, harmonious color palettes online. Swatch lock, 7 harmony modes, Tailwind 50-950 shades, WCAG contrast, and CSS export. 100% free.
CSS Clip Path Generator
Create custom CSS clip-paths and polygon masks with an interactive visual editor. Draggable points, presets, Tailwind export, and SVG clipPath. 100% free.
SVG Pattern Generator
Generate seamless SVG background patterns and textures online. Customize colors, scale, and opacity. Export CSS data URI, SVG file, or Tailwind. 100% free.
CSS Glassmorphism Generator
Design modern frosted glass UI cards online. Live preview with blur, saturation, border highlights, and Tailwind CSS export. 100% free and client-side.
SVG to JSX Converter
Convert SVG code or files into clean React JSX or TSX components online. Automatic camelCase attributes, TypeScript support, 1em icon sizing. 100% free.
CSS Triangle Generator
Generate pure CSS triangles and arrows using the border trick. 8 directions, tooltip pseudo-elements, Tailwind export, and live preview. 100% free.
cURL to Python Converter
Convert cURL commands to Python code instantly. Supports requests, httpx, and urllib. Auto-detects JSON, headers, auth, and cookies. 100% private and free.
JSON to Zod Schema Generator
Convert JSON into TypeScript Zod validation schemas online. Supports nested objects, arrays, smart format detection (date, email, URL, UUID), and type inference.
CSS Border Radius Generator
Generate organic 8-point CSS border radius shapes and fluid blob animations online. Interactive drag handles, presets, and Tailwind CSS classes.
JSON to Go Struct Converter
Convert JSON into idiomatic Go (Golang) structs online. Supports struct tags, omitempty, nested structs, time.Time detection, and pointer types.
CSS Neumorphism Generator
Create soft UI neumorphic shapes, buttons, and cards online. Dual shadow elevation, concave/convex surfaces, and Tailwind CSS code export.
cURL to Go Converter
Convert cURL commands to idiomatic Go (Golang) net/http code online. Supports headers, JSON bodies, basic auth, and cookies. Fast, 100% private in-browser.
cURL to Rust Converter
Convert cURL commands to idiomatic Rust reqwest code online. Supports async tokio, blocking client, JSON payloads, and Cargo.toml. 100% free and private.
JSON to Rust Struct Converter
Convert JSON to idiomatic Rust structs online with Serde Serialize and Deserialize derives, Option handling, and Cargo.toml. 100% free and private.
cURL to PHP Converter
Convert cURL commands to native PHP curl_init or Guzzle HTTP code online. Supports JSON, headers, basic auth, cookies, and timeouts. 100% free and private.
JSON to Python Model Converter
Convert JSON to Python Pydantic v2 models, dataclasses, and TypedDict schemas online. Features type annotations, field alias mapping, and instant download.
cURL to C# Converter
Convert cURL commands to modern C# .NET HttpClient and RestSharp code online. Features async/await, JSON payloads, headers, auth, and instant download.
JSON to C# Converter
Convert JSON to idiomatic C# classes, records, and POCOs online. Features System.Text.Json and Newtonsoft.Json attributes, nullable types, and instant download.
cURL to Java Converter
Convert cURL commands to modern Java 11+ HttpClient and OkHttp code online. Features headers, JSON payloads, basic auth, and instant file download.
JSON to Java Converter
Convert JSON to Java 16+ records, POJOs, and Lombok classes online. Features Jackson and Gson annotations, nested DTOs, and instant .java file export.
JSON to Kotlin Converter
Convert JSON to idiomatic Kotlin data classes online. Supports kotlinx.serialization, Moshi, Jackson, Gson, val/var, nullability, and instant .kt file export.
JSON to Swift Converter
Convert JSON to Swift Codable structs online. Features automatic CodingKeys, Decodable, Identifiable, let/var modifiers, and instant .swift file export.
JSON to Dart Converter
Convert JSON to null-safe Dart 3 models online. Features fromJson/toJson, json_serializable, Freezed annotations, and instant .dart file export.
cURL to Node.js Converter
Convert cURL commands to modern Node.js code with Axios, native Node 18+ Fetch, and HTTPS. Features ESM/CommonJS, JSON payloads, and instant .js export.
cURL to Dart Converter
Convert cURL commands to modern Dart and Flutter code with package:http, Dio, and dart:io HttpClient. Supports JSON payloads, auth, and instant .dart export.
cURL to Swift Converter
Convert cURL commands to modern Swift code with URLSession async/await, closures, and Alamofire. Features JSON payloads, auth, and instant .swift export.
cURL to Kotlin Converter
Convert cURL commands to modern Kotlin code with Ktor Client coroutines, Android OkHttp, and Java 11. Features JSON payloads, auth, and instant .kt export.
Meta Tag Generator & Open Graph Previewer
Generate HTML SEO meta tags, Open Graph tags, and Twitter Cards with real-time visual previews for Google, X, Facebook, LinkedIn, and Discord. 100% private.
Image Color Picker & Palette Extractor
Pick precise pixel colors from any image with magnifying loupe. Extract dominant color palettes and copy HEX, RGB, HSL, or CSS variables. 100% private.
Color Contrast Checker (WCAG 2.1)
Test color contrast ratios according to WCAG 2.1 guidelines. Verify AA & AAA accessibility for normal text, large headings, and UI icons with live playground.
JSON to PHP Converter
Convert JSON to modern PHP 8.1+ readonly DTOs with Constructor Property Promotion, PHP 7.4 Typed Classes with getters/setters, or native associative arrays.
SVG to Data URI Converter
Convert SVG code into optimized UTF-8 URL-encoded or Base64 Data URIs and ready-to-use CSS background-image, mask-image, and HTML <img> snippets.
cURL to Ruby Converter
Convert cURL commands to Ruby code using Net::HTTP (standard library), Faraday, or HTTParty. 100% in-browser, secure, and private.
CSS Grid Generator
Design interactive CSS Grid layouts visually. Define fractional & pixel tracks, drag-and-drop named grid areas, and export clean CSS & HTML markup.
JWT Token Builder & Signer
Build, customize claims, sign, and verify JSON Web Tokens (JWT) using HMAC algorithms (HS256, HS384, HS512) directly in your browser.
CSV to SQL Converter
Convert CSV and TSV spreadsheets to SQL queries, CREATE TABLE DDL schemas, and batch INSERT statements online. 100% private in-browser conversion with multi-dialect support.
CSS Keyframes & Animation Generator
Create custom CSS @keyframes animations and visual transitions online with real-time 60 FPS preview, visual timeline editor, and Tailwind CSS export.
URL Parser & Query String Editor
Deconstruct URLs into protocol, host, path, and query parameters online. Edit query parameters, strip UTM tags, and export to cURL and JSON.
SQL to CSV Converter
Convert SQL INSERT statements and database dumps to RFC 4180 CSV or TSV spreadsheets online. 100% private in-browser conversion with multi-row batch support.
YAML Formatter & Validator
Format, validate, and beautify YAML documents and Kubernetes manifests directly in your browser. Detects tabs, indents, and converts to JSON.
Bcrypt Hash Generator & Verifier
Generate and verify cryptographically secure Bcrypt password hashes in your browser. Configurable cost factors (4-14) and support for $2a, $2b, and $2y prefixes.
Color Shade & Tint Generator
Generate Tailwind CSS 50-950 color scales, tints, shades, and WCAG 2.1 contrast ratios with instant CSS and SVG exports.
PNG to JPG Converter
Convert PNG images to JPG format online in your browser. Seamlessly fill transparent backgrounds with white or custom colors and adjust JPEG compression quality.
JPG to WebP Converter
Convert JPG and JPEG images to next-generation WebP format online in your browser. Reduce file size by up to 45% while preserving high visual quality.
Remove Duplicate Lines
Remove duplicate lines from text and lists online in your browser. Deduplicate lines, sort alphabetically, count occurrences, and extract unique items with 100% privacy.
.gitignore Generator
Generate production-ready .gitignore files for Node, Python, React, macOS, VSCode, and 40+ tech stacks online. Select templates, merge rules, and download instantly.
Robots.txt Generator
Generate custom robots.txt files for search engines and AI web scrapers online. Configure allow/disallow rules, add sitemaps, and download instantly.
Markdown Table to SQL Converter (180th Tool Milestone!)
Convert Markdown pipe tables into SQL DDL and INSERT statements with smart column type inference across PostgreSQL, MySQL, and SQLite.
Explore by Category Hubs
Comprehensive standalone suites of specialized tools engineered for specific tasks.
Image Tools
16 tools available
Convert, resize, compress, and edit images right in your browser with zero upload wait.
Developer Utilities
205 tools available
JSON formatters, regex testers, code minifiers, hash generators, and encoding tools.
Text Tools
15 tools available
Word counters, text diff, case converters, lorem ipsum generators, and markdown tools.
Data Converters
77 tools available
Convert between CSV, JSON, XML, YAML, and Excel formats instantly in your browser.
Calculators
39 tools available
Date difference, age, percentage, time zone, and unit conversion calculators.
Security & QR
15 tools available
Generate QR codes, UUIDs, passwords, and cryptographic hashes client-side.