All Tools

Format, validate, minify, sort keys and inspect JSON outline locally.

Encode/decode Unicode text, URL-safe Base64, and small files in the browser.

Encode/decode URL components or full URLs and inspect query parameters.

Generate UUID v1, v3, v4, v5, v6 and v7 with namespace, batch output, uppercase and hyphen options.

Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes for text or small files.

Convert numbers across bases and transform text into hex, binary, Base64 and Unicode bytes.

Calculate network address, subnet mask, host range and wildcard mask for IPv4 CIDR blocks.

Search and filter common HTTP status codes with bilingual explanations, categories and troubleshooting hints.

Encode JSON into Protobuf bytes or decode hex / Base64 Protobuf payloads with a .proto schema in the browser.

Decode JWT header and payload locally, inspect claims, expiry times and raw Base64URL segments.

Generate HS256, HS384 or HS512 JSON Web Tokens directly in the browser for testing and local workflows.

Convert HEX, RGB, HSL and HSV colors, inspect alpha values, pick colors visually and preview palettes instantly.

Look up printable ASCII codes, control names and character conversions between decimal, hex and binary.

Format and validate XML locally with a clean pretty-printed output.

Format and validate YAML locally with stable indentation and clean output.

Format and validate TOML locally for config files and structured settings.

Convert common docker run commands into a starter docker-compose service block.

Generate common desktop and mobile User-Agent strings for testing requests and client detection logic.

Convert JSON arrays and CSV tables both ways in the browser, with headers, delimiter choice and quick validation.

Encrypt or decrypt short text with AES, DES or 3DES in the browser, with selectable block mode, padding, IV and output format.

Inspect text or files as hex bytes, edit hexadecimal content, and decode it back to text locally in the browser.

Generate browser-side RSA key pairs and use them for short text encryption, decryption, signing and verification.

Test JavaScript regular expressions, inspect matches, groups and replacements, and iterate with live sample text in the browser.

Evaluate JSONPath expressions against JSON data, inspect matched paths and preview results with GitHub-style highlighted JSON output.

Explain cron expressions, generate friendly schedules, and preview upcoming run times directly in the browser.

Convert structured data between JSON, YAML, TOML and XML, validate input, and preview the output with GitHub-style code highlighting.

Convert text bytes between UTF-8, UTF-16, Shift-JIS, EUC-JP and other browser-safe encodings, then inspect normalized text and hex bytes.

Browse common HTTP response headers, understand caching, security and delivery-related fields.

Look up common HTTP request headers and quickly review client, auth and caching related fields.

Minify JSON instantly in the browser and remove unnecessary whitespace before shipping data elsewhere.

Break a URL into protocol, host, path, query and hash fields, then inspect every parameter clearly.

Build clean query strings from key-value pairs and preview the final URL segment instantly.

Convert Unix timestamps, batch date strings, ISO, local time and generate timestamps from date input.

Generate strong random passwords with length, character sets, memorable mode and ambiguity filters.

Generate random integers or decimals with range, quantity, uniqueness and sorting options.

Generate current TOTP codes from a secret or otpauth URI with configurable digits, period and algorithm.

Inspect a file in the browser and identify common formats from extension, MIME type and magic bytes.

Compress images in the browser, convert to WebP / AVIF / JPEG / PNG, resize dimensions and compare file size savings instantly.

Convert one date and time across major time zones, compare offsets, and keep a live current-time board in the browser.

Add text watermarks to images in the browser, preview placement instantly, and export the final watermarked file without any backend.

Convert images into Base64 data URLs locally, inspect size impact, and copy browser-ready output for HTML, CSS or API payloads.

Read common image metadata such as EXIF time, camera tags and GPS coordinates directly in the browser.

Look up common MIME types, file extensions and browser-facing content-type values in one fast table.

Check keyboard input in the browser, see which keys fire correctly, and monitor repeat, code and modifier states live.

Generate QR codes from text and decode uploaded QR images in one browser tool.

Look up common international calling codes and quickly map phone prefixes to countries or regions.

Browse useful emoji groups, search by keyword, and copy symbols for social posts, notes and UI content.

Crop images to a chosen frame, resize dimensions, and export a clean result directly in the browser.

Rotate, flip and re-export images directly in the browser with a clean visual preview.

Convert one image between PNG, JPEG and WebP directly in the browser with a clean visual preview.

Convert multiple images to PNG, JPEG or WebP in one go, then download everything as a ZIP file.

Generate common 1D barcodes from text and decode uploaded barcode images in one browser tool.

Merge multiple PDF files locally, reorder them, remove files, and export one combined PDF without uploading anything.

Turn JPG, PNG, WebP and other browser-readable images into a multi-page PDF locally, reorder pages, and export one clean document.

Read a DOCX file in the browser, turn it into HTML or Markdown, and export simple HTML content back into a clean DOCX file.

Split selected pages from a PDF directly in the browser and export a smaller document instantly.

Rebuild each PDF page as a lighter image document, then export a smaller PDF directly in your browser.

Add repeated text watermarks across every page of a PDF directly in the browser.

Add a password to a PDF directly in the browser and export a protected copy instantly.

Advanced bilingual word, character, keyword and reading-time analyzer.

Convert text to upper, lower, title, sentence, camel, Pascal, snake, kebab and more.

Trim, dedupe, sort, remove blanks, punctuation or numbers, and batch prefix/suffix lines.

Compare two text blocks line by line and highlight added, removed and changed content.

Turn short text into classic ASCII art with multiple FIGlet fonts, directly in the browser.

Convert Markdown and HTML both ways, preview the result, then continue into PDF or Word export in the same browser workflow.

Turn titles or phrases into clean URL-friendly slugs with case, separator and trim options.

Calculate percent of, percent ratio, increase/decrease, and add/subtract percentage.

Convert length, mass, temperature, area, volume and speed with bidirectional inputs.