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15 tools, typed by what they take and produce. Search by job, name or type, then narrow the list.

Tool Base Converter Developer Convert an integer between binary, octal, decimal and hexadecimal as you type. See all four bases, copy any row, and keep 64-bit values exact. NumberText NumberText Tool Base64 Encoder & Decoder Developer Encode text to Base64 or decode it back, with full Unicode support and an optional URL-safe alphabet. Runs entirely in your browser. TextBytes TextBytes Tool Case Converter Text Turn any text into sentence case, Title Case, UPPER, lower, camelCase, snake_case or kebab-case as you type. No upload, no signup. TextLines TextLines Recipe Check a headline Recipe Set a headline to sentence case, then count its words, characters and reading time. Recipe Clean JSON for an API payload Recipe Validate a JSON payload, format it, then Base64-encode it for a header or a worker. Tool Image Resizer Image Resize a photo to the width and height you need, switch between WebP, JPEG and PNG, and download it. The image stays in your tab. ImageFile ImageFile Tool JSON Formatter Developer Format, validate and minify JSON in your browser. See the exact line and column of any error. Nothing is uploaded. JsonText Json Tool Line Sorter Text Sort lines A→Z or Z→A, remove duplicates, trim spaces and add line numbers as you type. Numeric order when you need it. Nothing is uploaded. LinesText LinesText Recipe Make a URL-safe token Recipe Base64-encode with the URL-safe alphabet, then percent-encode the value for a query string. Tool Merge PDF PDF Combine two or more PDFs into one file, put them in the order you want, and download the result. The documents stay in your browser. PdfFile PdfFile Tool Meta Tag Generator SEO / Web Write a title, description and URL, then copy a correct title, canonical, Open Graph and Twitter tag set. See both previews first. Nothing is uploaded. TextUrl HtmlText Tool Password Generator Generators Generate a strong random password or a memorable passphrase in your browser. Choose the length and character types, copy it once, and nothing is uploaded. NumberText PasswordText Recipe Put a timestamp in a URL Recipe Convert a date or Unix time to seconds, then percent-encode the value for a query string or callback URL. Tool QR Code Generator Generators Turn a link or any text into a downloadable QR code in your browser. Set the size, quiet zone and error correction. No upload, no account. TextUrl QrImageText Tool Regex Tester Developer Test JavaScript regular expressions against your own text. See highlighted matches, capture groups and flags — locally in your browser, with nothing uploaded. RegexText JsonText Tool robots.txt Generator SEO / Web Build a correct robots.txt from plain choices: presets, user-agent rules, allowed and blocked paths, a sitemap and crawl delay. Copy or download it. Nothing is uploaded. TextUrl TextLines Recipe Sort, dedupe and count a list Recipe Sort a list, remove the duplicates, then count the words and characters in the cleaned result. Tool Timestamp Converter Developer Convert a Unix timestamp in seconds or milliseconds to ISO 8601, UTC, local time and relative time — or turn a date back into a timestamp. Runs in your browser. TimestampNumberText TextTimestamp Recipe Turn a URL into a QR code Recipe Percent-encode a URL with query parameters, then turn the encoded link into a scannable QR code. Tool URL Encoder & Decoder Developer Percent-encode or decode a URL component or a whole URL, with clear errors for malformed escapes. Everything runs in your browser. TextUrl TextUrl Tool Word Counter Text Count words, characters, sentences and paragraphs as you type. See reading time, speaking time and the words you use most. TextMarkdownLines JsonText