All tools
Search every Utilhex tool by name, task, or file format. Each one runs in your browser.
Merge PDF
Combine several PDFs into a single document.
PDF → PDF
Split PDF
Break one PDF into several files by page range.
PDF → PDF · ZIP
Compress PDF
Shrink a PDF by resizing photos or redrawing pages.
PDF → PDF
Image to PDF
Turn JPG, PNG, or WebP images into one PDF.
JPG · PNG · WebP → PDF
Extract PDF Pages
Save chosen pages from a PDF as a new file.
PDF → PDF
Organize PDF
Reorder and delete pages in a PDF.
PDF → PDF
Rotate PDF
Turn all or selected PDF pages and save the result.
PDF → PDF
Watermark PDF
Stamp text on PDF pages without uploading the file.
PDF → PDF
Add Page Numbers
Stamp page numbers onto a PDF, on your device.
PDF → PDF
PDF to JPG / PNG
Export PDF pages as JPG or PNG images.
PDF → JPG · PNG
PDF Annotator
Mark up a PDF with drawings, notes, and highlights.
PDF → PDF
JSON Formatter & Validator
Pretty-print, validate, and minify JSON.
JSON → JSON
JSON Diff
Compare JSON structurally, including arrays that were reordered.
JSON → Change list · Text diff
Text Diff
Compare two blocks of text line by line.
Plain text · Code → Side-by-side diff · Unified diff
Base64 Encode / Decode
Encode and decode Base64 text and files.
Text · Any file · Base64 → Base64 · Text
URL Encode / Decode
Percent-encode, decode, and inspect URLs.
Text · URL → Text · URL components
UUID Generator
Generate secure v4 and v7 UUIDs in bulk.
None · UUID (for inspection) → UUID list · Text file
JWT Decoder
Read JWT headers, claims, and expiry times.
JWT (JWS compact) → JSON
Timestamp Converter
Convert Unix epoch time to dates and back.
Unix time · ISO 8601 · Date → ISO 8601 · UTC
Hash Generator
SHA, MD5, and HMAC checksums for text and files.
Text · Any file → Hex · Base64
Regex Tester
Test regular expressions with live match highlighting.
Regular expression · Text → Matches · Replaced text
XML Formatter & Validator
Pretty-print, validate, and minify XML.
XML → XML
YAML Formatter & Validator
Format YAML and convert it to and from JSON.
YAML · JSON → YAML · JSON
SQL Formatter
Format SQL for common dialects, without running it.
SQL → SQL
Certificate Reader & Generator
Read a certificate, or create a self-signed one locally.
PEM · DER · CSR → PEM certificate · PEM private key
Compress Image
Shrink JPG, PNG, and WebP images in batches.
JPG · PNG · WebP → JPG · WebP
Resize Image
Change image dimensions by pixels or percentage.
JPG · PNG · WebP → Same as input · JPG
Convert Image
Convert images between PNG, JPG, WebP, and more.
JPG · PNG · WebP → JPG · PNG
Crop Image
Crop a photo to an exact rectangle, in your browser.
JPG · PNG · WebP → Same as input · JPG
Rotate Image
Rotate and flip images in batches, on your device.
JPG · PNG · WebP → Same as input · JPG
Favicon Generator
Build an ICO and PNG favicon pack in the browser.
PNG · JPG · WebP → ICO · PNG
CSV Diff
Compare two CSV files and highlight changed cells.
CSV · TSV → Diff table · CSV report
CSV to JSON Converter
Convert CSV to JSON and JSON back to CSV.
CSV · TSV · JSON → JSON · CSV
CSV Viewer & Cleaner
View a CSV, clean rows, and download the result.
CSV · TSV → CSV
Word Counter
Count words, characters, and reading time.
Text → Statistics
Text Case Converter
Switch text between upper, title, camel, snake, and more.
Text → Text
QR Code Generator
Create QR codes for links, Wi-Fi, and text.
URL · Text · Wi-Fi details → PNG · SVG
Unit Converter
Convert length, weight, temperature, and more.
Number → Number