Pretty-print and format JSON with 2-space indentation.
Validate JSON syntax and detect errors instantly.
Compact JSON into a single line by removing whitespace.
Deep-compare two JSON objects and highlight differences.
Convert JSON objects to well-formed XML documents.
Generate Java POJO classes from a JSON object.
Convert JSON to clean, human-readable YAML format.
Parse YAML and convert it to formatted JSON.
Generate TypeScript interfaces from any JSON sample.
Validate XML syntax and detect well-formedness errors.
Pretty-print and indent XML documents for readability.
Compact XML into a single line by removing whitespace.
Structurally compare two XML documents.
Convert XML documents to JSON objects.
Encode and decode Base64 strings, including Unicode text.
Percent-encode and decode URL components.
Convert images to Base64 data URLs and back.
Convert text between camelCase, snake_case, kebab-case, and more.
Convert numbers between decimal, binary, octal, and hexadecimal.
Convert colors between HEX, RGB, and HSL formats.
Escape and unescape strings for JS, HTML, JSON, and URLs.
Generate cryptographically random UUID v4 identifiers.
Generate MD5, SHA-1, SHA-256, SHA-512, and HMAC hashes.
Quick SHA-256 hash using the Web Crypto API.
Encrypt and decrypt data with AES (ECB, CBC, CTR, GCM).
Generate RSA key pairs and encrypt/decrypt with RSA-OAEP.
Decode and inspect JWT tokens without a secret.
Convert Unix timestamps to dates and vice versa.
Generate strong, cryptographically random passwords.
Sign JWT tokens with HS256 or HS512 and a custom payload.
Encode JWT parts from header+payload, or decode any JWT.
Generate live 2FA codes from a TOTP secret with QR code for easy setup.
Generate realistic fake data — names, emails, addresses, UUIDs — as JSON, CSV, TSV, or SQL. Up to 100,000 rows, free, no signup.
Combine multiple PDF files into one document, right in your browser. Free, no upload, no watermark.
Extract page ranges from a PDF or split it into single pages — free, in your browser, no upload.
Convert JPG and PNG images into a single PDF in your browser. Free, no upload, no watermark.
Convert each PDF page to a PNG or JPG image in your browser. Free, no upload, no watermark.
Reduce PDF file size in your browser — no upload, no watermark, no daily limit. Free forever.
Add a text watermark to every page of a PDF — custom text, color, opacity, and angle. Free, in your browser.
Reorder, rotate, and delete PDF pages with a visual page grid. Free, no upload, no watermark.
Remove printing, copying, and editing restrictions from a PDF. Free, in your browser, no upload.
Generate SEO meta tags, Open Graph, and Twitter Card tags with a live Google and social preview. Free, no sign-up.
Build a valid robots.txt with allow/disallow rules, multiple user-agents, sitemaps, and crawl-delay. Free.
Generate a .gitignore from common languages, frameworks, and tools — Node, Python, Go, macOS, and more. Free.
Create Open Graph and Twitter social share images (1200×630) in your browser. Free, no sign-up, download PNG.
Generate a full favicon pack — all sizes, apple-touch-icon, and site.webmanifest — from text or an image. Free.
Generate an Apache .htaccess: force HTTPS, www redirects, gzip, caching, security headers, and more. Free.
Side-by-side text comparison with line and word highlights.
Test regular expressions with flags, captures, and replace.
Parse CSV data and convert it to a JSON array.
Convert a JSON array of objects to CSV format.
Live preview Markdown as rendered HTML.
Format and beautify SQL queries with dialect support.
Generate complementary, analogous, and triadic color palettes.
Generate QR codes from any text or URL.
Parse cron expressions into human-readable schedules.
Build cron expressions from UI field controls.
Count words, characters, sentences, paragraphs, and reading time.
Convert cURL commands into runnable code in fetch, Axios, Python, Node, Go, PHP, or Ruby.
Compress JPEG, PNG, and WebP images in your browser. No upload required.
Searchable reference for every HTTP status code with explanations and when-to-use guidance.
Check if your resume is ATS-friendly. Upload a PDF or Word file — analysis runs entirely in your browser.
Build a clean, ATS-friendly resume and download it as a PDF — free, no sign-up, no watermark, unlimited downloads.
Create professional invoices and download them as PDF — free, no sign-up, no watermark. Live totals with tax and discount.
Convert Excel (.xlsx, .xls) and CSV files to JSON or CSV in your browser. Multi-sheet support, free, no upload.
Analyze a HAR file in your browser — request count, total size, timings, and breakdowns by status, type, and domain. Free.
66 essential dev tools — mock data generator, PDF compress & merge, cURL converter, JSON→TypeScript, image compressor, TOTP 2FA, and more. Fast, free, 100% in your browser.