38 free tools · No sign-up · Runs in your browser
Everyday tools.
One place.
Merge PDFs, compress images, format JSON, compare files, and more. Your files are processed on your device — nothing is uploaded.
Popular tools
A curated selection of the tools most people start with.
Merge PDF
Combine several PDFs into a single document.
Split PDF
Break one PDF into several files by page range.
Compress PDF
Shrink a PDF by resizing photos or redrawing pages.
Image to PDF
Turn JPG, PNG, or WebP images into one PDF.
Organize PDF
Reorder and delete pages in a PDF.
Watermark PDF
Stamp text on PDF pages without uploading the file.
JSON Formatter & Validator
Pretty-print, validate, and minify JSON.
JSON Diff
Compare JSON structurally, including arrays that were reordered.
Text Diff
Compare two blocks of text line by line.
UUID Generator
Generate secure v4 and v7 UUIDs in bulk.
Hash Generator
SHA, MD5, and HMAC checksums for text and files.
Regex Tester
Test regular expressions with live match highlighting.
Compress Image
Shrink JPG, PNG, and WebP images in batches.
Resize Image
Change image dimensions by pixels or percentage.
Convert Image
Convert images between PNG, JPG, WebP, and more.
Crop Image
Crop a photo to an exact rectangle, in your browser.
CSV Diff
Compare two CSV files and highlight changed cells.
CSV Viewer & Cleaner
View a CSV, clean rows, and download the result.
Word Counter
Count words, characters, and reading time.
QR Code Generator
Create QR codes for links, Wi-Fi, and text.
Browse by category
Every tool has its own page with instructions, limits, and privacy details.
PDF tools
Merge, split, compress, number, and mark up PDFs.
Developer tools
Format, compare, encode, and inspect developer data.
Image tools
Compress, resize, crop, convert, and make favicons.
Data tools
View, clean, compare, and convert CSV and JSON.
Text & everyday tools
Count, convert, and generate everyday text and values.
More tools are on the way
Utilhex grows based on what people actually need. Next up, only where it can be done honestly: PDF metadata, text extraction, and password workflows.
Missing something? Suggest a tool or try Compress PDF.
Built so your files don’t have to travel
Every tool available today runs in your browser using standard web technologies. When a future tool genuinely needs a server, its page will say so clearly — including what is uploaded and how long it is kept.
Read the privacy policy- Processed on your device
- PDF, image, and text processing happens in your browser tab, often in a background worker so the page stays responsive.
- No tracking or analytics
- Utilhex sets no tracking cookies and does not record what you type, the names of your files, or their contents.
- Honest results
- You see real before-and-after sizes. If an operation would not help — like compression that makes a file larger — we tell you.
- Clear limitations
- Each tool documents its supported formats, size limits, and known limitations, so there are no surprises.