Fast Text Format Tools
The ultimate collection of lightning-fast utilities to format, convert, and streamline your workflow.
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Case Converter & Text Utilities
Transform text case (camelCase, snake_case, PascalCase, Title Case), manipulate text, and clean formatting instantly.
Encoder / Decoder
Encode and decode various formats like URL, Base64, and HTML entities.
List Sorter & Deduplicator
Instantly sort text arrays alphabetically, numerically, or by length, and strip out duplicate lines.
Regex Replacer
Execute regular expressions, view live matches, and use cheat sheets.
Text Diff
Compare two text blocks side-by-side to highlight differences.
Text Statistics
Count words, characters, sentences, estimate reading time, and check keyword density.
Translator
Instantly translate text between dozens of languages.
Code & Formatting
Base64 to File Decoder
Decode Base64 strings or Data URIs back into downloadable files (images, PDFs, documents, audio) with instant live preview.
Code Beautifier & Minifier
Beautify, validate, and minify your JSON, JavaScript, CSS, and HTML code into clean, readable syntax.
Config Converter (TOML / INI / .env / JSON)
Convert configuration files seamlessly between TOML, INI, Java .properties, .env, YAML, and JSON formats with nested key flattening and unflattening.
CSS Formatter & Minifier
Format, beautify, validate, and minify CSS code with custom indentation.
CSS Visual Generators
Visually generate and export CSS code for Box Shadows, Gradients, Flexbox, and Grid layouts.
CSV to JSON/SQL
Convert CSV data to JSON arrays or SQL INSERT statements.
cURL to Fetch
Easily convert cURL commands into JavaScript Fetch API code.
Docker Run to Compose
Convert docker run CLI commands into clean, production-ready docker-compose.yml configuration files.
GraphQL Explorer & Formatter
Beautify, minify, validate, and inspect GraphQL queries, mutations, subscriptions, and SDL schemas with AST operation & variable analysis.
HTML & XML Formatter
Beautify, format, and minify HTML and XML code with customizable indentation and syntax cleanup.
HTML to JSX
Client-side tool to transform HTML tags/attributes into React-compatible JSX.
HTML to Tailwind CSS
Convert standard inline styles and CSS declarations into Tailwind CSS utility classes with live preview.
JS Obfuscator
Transform readable JavaScript code into unreadable, minified code to protect logic.
JSON Stringify & Parse (.env Ready)
One-click minify and stringify multi-line JSON objects into escaped strings ready for .env files, CLI args, or code literals, or parse escaped strings back into formatted JSON.
JSON to Code
Convert JSON objects into typed models for various languages.
JSON Tree Viewer
Visually inspect, expand, collapse, search, and filter complex JSON payloads with path inspection.
JSONPath & JQ Evaluator
Query, filter, extract, and transform JSON payloads in real-time using standard JSONPath (RFC 9535) or JQ-style expressions with table and visual path views.
Markdown Editor & Previewer
Write, edit, and preview Markdown in real-time with live HTML preview, syntax styling, and HTML export.
Semantic JSON Diff
Compare two JSON documents semantically, ignoring key ordering, formatting, and whitespace differences, with visual change highlighting and RFC 6902 JSON Patch export.
Source Map Viewer
Client-side tool to upload a .map file and de-minify stack traces.
SQL Formatter
Format, beautify, and minify SQL queries across multiple SQL dialects.
String Escape & Unescape
Safely escape (and unescape) quotes, backslashes, and newlines for use in JSON strings, SQL queries, HTML, and Java/C#.
SVG Optimizer
Minify and clean raw SVG code.
SVG to PNG/WEBP
Client-side tool utilizing an HTML canvas to rasterize SVG code or files into downloadable images.
XML Utilities
Format and minify XML strings.
YAML <-> JSON
Instantly convert between YAML and JSON.
Data & Crypto
Bcrypt Hash
Generate and verify Bcrypt passwords locally.
CSR & X.509 Certificate Decoder
Decode PEM/DER X.509 SSL certificates and PKCS#10 Certificate Signing Requests (CSRs) to inspect Subject, Issuer, SANs, public keys, validity, and SHA-256 fingerprints offline.
Epoch & Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and parse dates into epoch timestamps.
Hash Generator
Compute MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes.
HMAC Generator
Compute and verify cryptographic HMAC signatures using SHA-256, SHA-512, MD5, and secret keys.
JWT Debugger, Decoder & Signer
Decode, verify, debug, and sign JSON Web Tokens (JWT) with HMAC secret keys 100% locally.
RSA & AES Encryption Suite
Encrypt and decrypt text with AES-256-GCM/CBC, generate RSA-2048/4096 PEM keypairs, and perform RSA-OAEP encryption and digital signing locally via Web Crypto.
Generators & Utilities
ASCII Art Generator
Convert text into stylish ASCII art banners, figlet typography, and decorative monospace text.
Barcode Generator
Client-side tool using a canvas to generate linear barcodes (UPC, EAN, Code39) from text.
CHMOD Permissions Calculator
Calculate, convert, and inspect Linux file permissions with visual octal and symbolic modes.
Color Contrast
Check WCAG color contrast accessibility.
Color Converter & Picker
Pick colors and convert between HEX, RGB, HSL, HSV, and CMYK formats with live preview and palette tools.
Cron Expression Builder & Decoder
Build, edit, and decode cron schedules into human-readable descriptions with upcoming execution dates.
EXIF Data Viewer & Stripper
View, inspect, and strip EXIF, camera, and GPS location metadata from JPEG, PNG, and WebP images locally for complete privacy.
Favicon Generator
Convert standard images into universally compatible .ico files and generate standard web app icon sizes.
Image Base64
Convert image files into Base64 Data URI strings and CSS background-image properties.
Image Color Palette Extractor
Drop any image to extract its dominant HEX, RGB, and HSL color palette client-side, with interactive image eyedropper and one-click CSS variables, Tailwind, and JSON export.
Image Compressor
Compress and optimize JPEG, PNG, WEBP, and AVIF images locally in your browser.
Lorem Ipsum Generator
Generate customized dummy placeholder text by paragraphs, sentences, or words for mockups and designs.
Markdown Table Generator
A visual grid editor that allows users to easily add rows/columns and instantly outputs perfectly formatted Markdown table syntax.
Meta Tag & Open Graph Generator
Generate and visually preview SEO meta tags, Twitter Cards, and Facebook Open Graph tags.
Mock Data Generator
Generate hundreds of rows of fake test data (names, emails, addresses, dates, credit cards) and export it as CSV, JSON, or SQL INSERT statements for database testing.
Password Generator
Create strong, secure passwords and passphrases using customizable cryptographic algorithms.
PDF Toolkit
Merge, split, extract, rotate, and reorder PDF pages 100% locally in your browser.
QR Code Generator
Create scalable, customizable, and scannable QR codes from text or URLs with instant download.
Regex Tester & Builder
Test regular expressions with real-time match & capture group highlighting, syntax explanation breakdown, and multi-string test modes.
Robots.txt Generator
Build valid robots.txt rules, crawler directives, and block AI scrapers.
UUID / GUID Generator
Instantly generate universally unique identifiers (UUID/GUID v1, v4, v7) in bulk with custom formatting.
XML Sitemap Generator
Construct valid XML sitemaps with custom URLs, change frequencies, and priorities for search engines.
Finance & Units
Currency Converter
Calculate global exchange rates in real-time.
Unit Converter
Instantly convert length, weight, temperature, and data storage.
Networking
CORS Tester
Test, inspect, and debug Cross-Origin Resource Sharing (CORS) headers and preflight responses for any API or URL.
DNS Lookup
Check DNS records in real-time.
HTTP Headers Viewer
View HTTP request headers sent by your browser.
Internet Speed Test
Test your download and upload connection speed.
IP Lookup
Look up IP addresses and geolocation data.
MAC Vendor Lookup
Identify hardware vendors from MAC addresses.
RDAP Lookup
Lookup domain and IP registration data, registrar, nameservers, and DNSSEC status via RDAP.
Redirect & Link Trace
Unmask shortened URLs and trace full HTTP 301/302 redirect chains to their final destination.
SSL Certificate Inspector
Inspect live SSL/TLS certificates, issuer chains, expiration countdowns, SAN domains, and fingerprints for any domain.
Subnet Calculator
Calculate CIDR network masks and IP ranges.
URL Parser
Parse, inspect, edit, and build complete URLs and query parameters.
User-Agent Parser
Extract OS and browser info from User-Agent strings.
Webhook Tester
Send, test, and debug webhook deliveries with custom headers, HMAC signatures, and live response inspection.
WebSocket Client & Tester
Connect to WebSocket (ws:// and wss://) servers in real-time, send text or JSON messages, inspect live bidirectional frames, and measure latency.
RSA & AES Encryption Suite
Encrypt and decrypt text with AES-256-GCM/CBC, generate RSA-2048/4096 PEM keypairs, and perform RSA-OAEP encryption and digital signing locally via Web Crypto.
How to Use
Select AES Symmetric Cipher (AES-256-GCM or AES-256-CBC with PBKDF2 key derivation) or RSA Asymmetric Cryptography (RSA-OAEP encryption/decryption and RSA-PSS signing). All cryptographic operations execute 100% locally in your browser using the native Web Crypto API.
Frequently Asked Questions
What is the difference between AES symmetric encryption and RSA asymmetric encryption?
AES (Advanced Encryption Standard) is a symmetric cipher that uses the same secret key for both encryption and decryption, making it extremely fast for large payloads. RSA is an asymmetric public-key cryptosystem that uses a mathematically linked keypair: a public key to encrypt data or verify signatures, and a private key to decrypt data or sign messages.
Why is AES-256-GCM recommended over AES-256-CBC?
AES-256-GCM (Galois/Counter Mode) is an Authenticated Encryption with Associated Data (AEAD) cipher. In addition to confidentiality, it computes a 128-bit authentication tag that detects any tampering or bit-flipping prior to decryption, protecting against padding oracle attacks that can affect AES-CBC.
How does PBKDF2 key derivation protect my passphrase?
Human-readable passwords rarely have uniform cryptographic entropy. PBKDF2 (Password-Based Key Derivation Function 2) combines your passphrase with a cryptographically random 128-bit salt and applies 100,000 iterations of HMAC-SHA256 to derive a 256-bit key, drastically slowing down brute-force and rainbow-table attacks.
What is the salt:iv:ciphertext bundle format?
To decrypt AES ciphertext derived from a passphrase, the recipient needs the exact random PBKDF2 salt and Initialization Vector (IV) used during encryption. Neither the salt nor the IV is secret, so packing them as colon-delimited Base64 or Hex segments (salt:iv:ciphertext) provides a self-contained portable payload.
What is RSA-OAEP and why does RSA have a payload size limit?
RSA-OAEP (Optimal Asymmetric Encryption Padding) adds probabilistic padding to prevent chosen-ciphertext attacks. Because RSA operates on modular arithmetic bounded by the key modulus (e.g., 2048 bits = 256 bytes minus OAEP hash padding), direct RSA encryption is designed for small secrets such as symmetric session keys or tokens.
How do RSA-PSS digital signatures work?
RSA-PSS (Probabilistic Signature Scheme) hashes your message (using SHA-256, SHA-384, or SHA-512) and signs the digest using your private key. Anyone with your public key can verify that the signature matches the message and could only have been produced by the holder of the private key.
Should I choose 2048-bit or 4096-bit RSA keys?
RSA-2048 is the current industry baseline for TLS certificates and general encryption, offering fast key generation. RSA-4096 provides a much larger security margin for long-lived root keys and sensitive archives at the cost of slower keypair generation and larger ciphertexts.
What are SPKI and PKCS#8 PEM key formats?
SPKI (SubjectPublicKeyInfo) is the standard ASN.1 DER structure wrapped inside -----BEGIN PUBLIC KEY----- blocks, while PKCS#8 is the standard private key format wrapped inside -----BEGIN PRIVATE KEY----- blocks. Both are natively supported by OpenSSL, Node.js, Python cryptography, and Web Crypto.
Why does encrypting the same plaintext twice produce completely different ciphertexts?
Both AES (via a fresh random 16-byte salt and 12/16-byte IV on every operation) and RSA-OAEP (via random OAEP padding seed) are probabilistic encryption schemes. Semantic security ensures an observer cannot tell whether two ciphertexts were generated from identical plaintexts.
Are my keys, passphrases, or plaintexts ever transmitted over the network?
Never. Every key generation, key derivation, encryption, decryption, and signature verification step executes strictly inside your browser's isolated Web Crypto API (window.crypto.subtle) with zero server calls or telemetry.
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