
Minimal, fast, and focused online tools
Choose a tool to get started. All tools are free to use and work directly in your browser. No sign-up required.
Data Format Converters
Convert between JSON, YAML, CSV, XML, and other data formats
JSON Formatter
OpenFormat or minify JSON instantly. Free, fast, and shareable.
JSON ⇄ YAML
OpenConvert JSON to YAML or YAML to JSON with validation.
TOML ⇄ YAML
OpenConvert TOML to YAML or YAML to TOML with validation and sorting.
CSV ⇄ JSON
OpenConvert CSV to JSON or JSON to CSV with validation.
JSON Table
OpenRender JSON arrays into a quick table view.
TOML/INI → JSON
OpenConvert TOML or INI configs into JSON with validation.
Markdown ⇄ HTML
OpenConvert Markdown to HTML or HTML to Markdown instantly.
Data URI
OpenConvert text or files to data URIs with chosen MIME type.
Query → JSON
OpenParse query strings into structured JSON with decode and array options.
XML Formatter
OpenBeautify and validate XML with indentation options.
cURL → fetch
OpenConvert cURL commands into JavaScript fetch snippets instantly.
Email CSS Inliner
OpenInline CSS into HTML for better email client compatibility.
Encoding & Hashing
Encode, decode, hash, and generate unique identifiers
Base64 Encoder/Decoder
OpenConvert text to or from Base64 with copy-ready output.
URL Encoder/Decoder
OpenEncode or decode URLs instantly for query params and redirects.
HTML Entities
OpenEncode or decode HTML entities safely.
Image → Base64
OpenConvert images to Base64 strings with preview.
Hash Generator
OpenCompute SHA-256 or SHA-1 hashes in your browser.
UUID Generator
OpenGenerate v4 UUIDs (single or bulk) and copy instantly.
UUID v1/v5
OpenGenerate UUID v1, v4, or v5 with namespace/name support.
NanoID Generator
OpenGenerate short, URL-safe IDs with custom alphabets.
Validation & Analysis
Validate data, test patterns, and analyze content
JSON Validator
OpenValidate and lint JSON with helpful errors and pretty output.
JSON Diff
OpenCompare two JSON objects and highlight changes.
Regex Tester
OpenTest regex patterns with flags and see matches instantly.
Regex Extractor
OpenExtract regex matches and capture groups as a table.
Resume Analyzer
OpenCheck keywords, word counts, and readability for ATS-friendly resumes.
Cron Parser
OpenValidate cron expressions and view next run times.
Cron Expression Tester
OpenValidate cron strings and see upcoming run times.
Code & Configuration
Format, minify, and work with code and configuration files
Code Minifier
OpenMinify or pretty-print HTML, CSS, or JS quickly.
SQL Formatter
OpenFormat SQL with dialect options and copy-ready output.
JWT Decoder
OpenDecode JWT header and payload locally to inspect claims.
JWT Generator
OpenSign and decode HS256 JWTs locally in your browser.
CSS Units Converter
OpenTranslate px, rem, em, vw, vh with custom base and viewport settings.
Permission Calculator
OpenConvert chmod octal to symbolic with setuid/setgid/sticky bits.
Cron Generator
OpenBuild cron expressions with a simple UI and summary.
Text & Content Processing
Transform, search, and manipulate text content
Text Case Converter
OpenConvert between camel, snake, kebab, title, upper, and lower.
Text Search
OpenSearch text with regex/whole-word options and view snippets.
Text Deduper
OpenRemove duplicate lines with case-insensitive options.
Markdown Preview
OpenLive Markdown rendering with copy-ready HTML.
Lorem Ipsum
OpenGenerate placeholder paragraphs or sentences.
Number Formatter
OpenFormat numbers and currencies with locale and decimals.
Timestamp Converter
OpenConvert Unix timestamps to human dates and back.
Color Converter
OpenConvert HEX, RGB, and HSL with live preview.
Diff Viewer
OpenCompare two texts and highlight additions/removals.
Generation & Utilities
Generate data, QR codes, passwords, and perform lookups
QR Code Generator
OpenCreate QR codes from text or URLs and download PNGs.
Password Generator
OpenCreate strong, random passwords with custom rules.
Mock Data Generator
OpenGenerate fake user/transaction data in JSON, CSV, or SQL.
IP / ASN Lookup
OpenValidate IPs, detect private ranges, and fetch ASN when configured.
URL Parser
OpenBreak URLs into protocol, host, path, params, and hash.
WebP Converter
OpenConvert JPG/PNG/GIF to WebP locally with quality control.
PDF → Text
OpenExtract clean text from PDFs directly in your browser for free.