SVG Preview & OptimizerPreview SVG files safely and shrink them by removing comments, editor metadata and whitespace, with optional number rounding.
Developer Tools
Fast, no-nonsense utilities for day-to-day development. Pretty-print and validate JSON or XML, encode URLs and Base64, convert timestamps, generate UUIDs, test regular expressions, diff files, clean CSV data and inspect JWTs. Tokens, payloads and keys you paste are processed locally and never sent anywhere.
Color Picker & ConverterPick a colour, convert between HEX, RGB and HSL, sample colours from an image or your screen, and check contrast against white and black text.
Markdown PreviewWrite Markdown and see a safe live preview.
JSON Formatter & ValidatorFormat, validate and beautify JSON with 2 or 4 spaces or tabs.
JSON MinifierMinify JSON by removing whitespace and line breaks, validate it at the same time and see how many bytes you saved.
XML Formatter & ValidatorPretty-print or minify XML, sitemaps, RSS feeds and SVG, and check that the XML is well-formed.
HTML Entity Encoder / DecoderEscape <, >, &, quotes and optionally all non-ASCII characters as HTML entities, or decode entities back to text.
URL Encoder / DecoderPercent-encode text for URLs and query strings, decode encoded URLs, and break a full URL into its parts and query parameters.
Base64 Encoder / DecoderEncode text or files to Base64 and decode Base64 back to text or a downloadable file.
UUID GeneratorGenerate random UUID v4 or time-ordered UUID v7 identifiers in bulk using your browser’s secure random generator.
Unix Timestamp ConverterConvert Unix timestamps in seconds, milliseconds or microseconds to readable dates in UTC and your time zone, and convert dates back to epoch time.
Regex TesterTest JavaScript regular expressions with live match highlighting, capture groups, named groups and a replace preview.
Diff CheckerCompare two files or code snippets line by line with added and removed lines highlighted.
CSV CleanerClean CSV files in your browser: trim cells, remove empty and duplicate rows, change the delimiter and preview the table before downloading.
CSV ↔ JSON ConverterConvert CSV to JSON (array of objects or arrays) and JSON back to CSV.
JWT DecoderDecode a JSON Web Token to read its header and payload, with expiry and issued-at times in readable form.
Hash Generator (SHA)Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes and HMAC signatures of text using the browser’s Web Crypto API.
File to Data URIConvert an image, font or any small file into a Base64 data URI, with ready-to-paste CSS and HTML snippets and a size warning when inlining is a bad idea.
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Other categories
Image ToolsCompress, resize, convert, crop and inspect images privately in your browser.15 toolsPDF ToolsMerge, split, rotate, reorder and convert PDF files without uploading them.12 toolsText & Writing ToolsCount words, change case, clean text, compare drafts and preview Markdown.13 toolsSEO ToolsGenerate meta tags, robots.txt and sitemaps; preview snippets and check headings.13 toolsSocial Media ToolsFormat captions, organise hashtags, check post lengths and plan content.9 toolsQR Code ToolsCreate QR codes for text, links, Wi-Fi and contacts, or read a QR code from an image.5 toolsCalculators & ConvertersPercentages, discounts, dates, units, file sizes, download times and more.10 toolsSecurity & PrivacyGenerate strong passwords, estimate strength, hash text and verify file checksums.8 toolsFile UtilitiesInspect files, create ZIP archives, convert files to data URIs and verify checksums.8 tools