All tools

Every FindTool utility, grouped by category. All free, all running entirely in your browser. Start typing to filter the list.

JSON & Data

JSON Formatter Pretty-print, validate and minify JSON with syntax highlighting and precise error locations.

JSON Validator Check whether JSON is valid and get the exact line, column and cause of any syntax error.

JSON Minifier Strip whitespace from JSON to shrink payloads, with a live byte-size saving comparison.

JSON Viewer Explore large JSON as a collapsible tree, with search, type badges and copyable paths.

JSON to CSV Convert a JSON array into CSV, flattening nested objects into dotted column headers.

CSV to JSON Turn CSV or TSV into a JSON array, with header detection and automatic type inference.

JSON to YAML Convert JSON into readable YAML for Kubernetes manifests, CI files and config.

YAML to JSON Convert YAML into JSON and surface indentation or syntax errors with line numbers.

XML Formatter Indent and validate XML, including SOAP envelopes, RSS feeds and SVG markup.

XML to JSON Convert XML documents to JSON, with clear handling of attributes and text nodes.

Encoding & Decoding

Base64 Encoder Encode text or files to Base64, with URL-safe output and data URI generation.

Base64 Decoder Decode Base64 back to text or download it as the original file.

JWT Decoder Decode JWT header and payload, read claim timestamps, and optionally verify the signature.

URL Encoder Percent-encode text for safe use in URLs, query strings and form bodies.

URL Decoder Decode percent-encoded URLs and break query strings into a readable table.

HTML Entity Encoder Escape HTML special characters to prevent markup injection and rendering bugs.

HTML Entity Decoder Convert HTML entities back into the characters they represent.

Hex to Text Decode hexadecimal byte sequences into readable UTF-8 text.

Text to Hex Encode text as hexadecimal bytes in the format your tooling expects.

Unicode Converter Inspect and convert between characters, code points, escape sequences and UTF-8 bytes.

Generators

UUID Generator Generate v4 and v7 UUIDs in bulk, with formatting options and one-click copy.

Password Generator Create strong random passwords or passphrases, with a real entropy estimate in bits.

Random String Generator Build random strings from exactly the character set and length you specify.

Nano ID Generator Generate compact URL-safe Nano IDs with a live collision-probability estimate.

Random Number Generator Draw random integers or decimals in a range, with optional uniqueness and sorting.

Lorem Ipsum Generator Generate placeholder paragraphs, sentences, words or list items for mockups.

Hashing & Security

SHA-256 Generator Compute SHA-256 digests of text or files using the Web Crypto API.

SHA-1 Generator Compute SHA-1 digests for legacy compatibility — no longer collision-resistant.

MD5 Generator Compute MD5 checksums for legacy file verification — not a security function.

HMAC Generator Generate HMAC signatures with a secret key for webhooks and API authentication.

Date & Time

Unix Timestamp Converter The live Unix epoch plus conversion both ways, in seconds or milliseconds, UTC and local.

Timezone Converter Compare one moment across multiple timezones, with DST handled correctly.

Date Difference Calculator Measure the span between two dates in years, months, weeks, days, hours and seconds.

ISO Date Converter Parse and build ISO 8601 / RFC 3339 dates and convert between common formats.

Cron Expression Generator Build a cron expression from plain controls and preview the next run times.

Cron Expression Parser Explain any cron expression in plain English and list its upcoming run times.

Text Tools

Word Counter Count words, sentences, paragraphs and reading time as you type.

Character Counter Count characters, bytes and graphemes against platform limits like Twitter and SMS.

Text Case Converter Convert between camelCase, snake_case, kebab-case, Title Case and eight more styles.

Text Diff Compare two blocks of text and highlight every added, removed and changed line.

Remove Duplicate Lines Strip repeated lines from a list, with case and whitespace options.

Sort Lines Sort lines alphabetically, numerically, by length, or shuffle them randomly.

Remove Extra Spaces Collapse repeated spaces, trim lines and strip blank lines or invisible characters.

Slug Generator Turn any title into a clean URL slug, with accent folding and transliteration.

Web & Dev

What Is My IP See the public IP address your traffic arrives from, and what it reveals about you.

Subnet Calculator Work out network, broadcast, host range, masks and splits for any IPv4 or IPv6 CIDR.

Regex Tester Test regular expressions with highlighted matches, capture groups and a safety timeout.

Color Converter Convert colors between HEX, RGB, HSL, HWB, OKLCH and CMYK with a live contrast check.

HTTP Status Code Lookup Search every HTTP status code with its meaning, typical cause and correct usage.

User Agent Parser Break a user agent string into browser, engine, operating system and device.

CSS Minifier Minify CSS safely, preserving strings, custom properties and licence comments.