Your files never leave this page

54 tools for images, data and text. Every one runs inside your browser — nothing is uploaded, there are no accounts, and there is no server holding your files afterwards.

Image tools

Convert, resize and compress images without uploading them.

Data & developer tools

Format, convert, encode and hash — all on your own machine.

Format and validate JSON Pretty-print JSON and catch syntax errors, entirely in your browser. Minify JSON Strip whitespace from JSON to make it as small as possible. Convert JSON to CSV Turn an array of JSON objects into a CSV table. No upload required. Convert CSV to JSON Turn a CSV table into JSON objects, privately in your browser. Encode text to Base64 Convert text to Base64 without sending it to a server. Decode Base64 to text Decode Base64 strings back to plain text, entirely offline. URL-encode text Percent-encode text so it is safe to put in a URL. Decode a URL-encoded string Turn percent-encoded text back into readable characters. Escape HTML entities Convert characters like < and & into safe HTML entities. Decode HTML entities Turn HTML entities back into the characters they represent. Decode a JWT Inspect the header and payload of a JSON Web Token. Nothing is transmitted, which matters — tokens are credentials. Generate UUIDs Create version 4 UUIDs using your browser's own crypto library. Generate a strong password Cryptographically random passwords, generated on your device and never sent anywhere. Generate SHA hashes Compute SHA-1, SHA-256, SHA-384 and SHA-512 hashes locally. Convert a Unix timestamp Turn Unix timestamps into readable dates, and back again.

Text tools

Clean up, count and transform text in your browser.

Count words and characters Word, character, sentence and paragraph counts as you type. Convert text to UPPERCASE Turn any text into capitals instantly. Convert text to lowercase Turn any text into lower case instantly. Convert text to Title Case Capitalise the first letter of each word. Convert text to sentence case Capitalise the first letter of each sentence. Turn text into a URL slug Convert a title into a clean, lowercase, hyphenated slug. Remove duplicate lines Strip repeated lines from a list, keeping the first of each. Sort lines alphabetically Put a list of lines into alphabetical order. Reverse text Flip a string so it reads backwards. Remove line breaks Collapse multi-line text into a single continuous line.