Free PDF & developer tools, right in your browser

JSON Formatter

Format and indent messy or minified JSON.

JSON Validator

Check whether JSON is valid and see exactly what's wrong if not.

XML Formatter

Format and indent messy or minified XML.

Base64 Encoder

Encode text to Base64 instantly.

Base64 Decoder

Decode Base64 back to readable text instantly.

URL Encoder

Percent-encode text for safe use in a URL.

URL Decoder

Decode a percent-encoded URL back to readable text.

Hash Generator

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes.

UUID Generator

Generate random UUIDs (v4) in bulk.

QR Code Generator

Turn any text or URL into a downloadable QR code.

QR Code Reader

Decode a QR code from an uploaded image.

Merge PDF

Combine multiple PDFs into one file, in your chosen order.

Split PDF

Split one PDF into two, at any page you choose.

Rotate PDF

Rotate every page in a PDF by 90°, 180°, or 270°.

Add Page Numbers

Stamp page numbers onto every page of a PDF.

PDF Page Counter

Instantly check how many pages are in a PDF.

PDF Metadata Viewer

View a PDF's title, author, creation date, and other metadata.

AI PDF Summarizer

Get a clear summary of a PDF — one free try, then download the app for unlimited use.

Chat with PDF

Ask one question about a PDF and get an AI answer — one free try per visitor.

Explain PDF

Get a dense or technical PDF explained in plain language — one free try per visitor.

Translate PDF

Translate a PDF's text into another language with AI — one free try per visitor.

AI Study Notes Generator

Turn a PDF into structured study notes with AI — one free try per visitor.

Flashcard Generator

Generate Q&A flashcards from a PDF with AI — one free try per visitor.

Quiz Generator

Generate a multiple-choice quiz from a PDF with AI — one free try per visitor.