USTOOLS ONLINE
51+ free online tools

One toolbox for everything online

Converters, downloaders, AI tools, calculators and SEO tools — fast, free and private. The core toolkit runs inside your browser, so your files stay on your device.

Browse all tools Merge a PDF now

Converters

PDF, image, document and data format conversion in both directions.

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Downloaders

Grab videos and audio from YouTube, TikTok, Instagram, Facebook, Threads, Reddit and X.

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AI tools

Summarise, rewrite, extract and generate content with AI assistance.

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Calculators

Mortgage, loan, BMI, calorie, GPA, scientific and graphing calculators.

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SEO tools

Audit meta tags, keywords and page health to rank higher.

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In browser

Merge PDF

Combine multiple PDFs into one document.

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In browser

Split PDF

Split a PDF into separate files.

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In browser

Compress PDF

Reduce PDF file size.

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In browser

Watermark PDF

Add a text watermark to every page.

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In browser

JPG to PDF

Turn JPG images into a PDF.

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In browser

PDF to JPG

Convert every PDF page to a JPG.

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51

PDF tools

20

Run in browser

200 MB

Max file size

0

Files uploaded

Browse by category

51 tools grouped the way you actually work — organise, optimise, convert, edit and secure.

Organize PDF

5 tools
In browser

Merge PDF

Combine multiple PDFs into one document.

Open tool
In browser

Split PDF

Split a PDF into separate files.

Open tool
In browser

Organize PDF

Reorder pages in any sequence.

Open tool
In browser

Delete Pages

Remove pages from a PDF.

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In browser

Extract Pages

Keep only the pages you need.

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Optimize PDF

6 tools
In browser

Compress PDF

Reduce PDF file size.

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In browser

Flatten PDF

Flatten form fields and annotations.

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Provider

OCR PDF

Make scanned PDFs searchable.

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Provider

Repair PDF

Recover a damaged PDF.

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Provider

Compress Images in PDF

Recompress embedded images.

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Provider

Convert to PDF/A

Archive-ready PDF/A output.

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Convert to PDF

13 tools
In browser

JPG to PDF

Turn JPG images into a PDF.

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In browser

PNG to PDF

Turn PNG images into a PDF.

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In browser

Text to PDF

Turn a text file into a PDF.

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In browser

JSON to PDF

Pretty-print JSON as a PDF.

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Provider

Word to PDF

Convert DOC and DOCX to PDF.

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Provider

Excel to PDF

Convert XLS and XLSX to PDF.

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Provider

PowerPoint to PDF

Convert PPT and PPTX to PDF.

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Provider

HTML to PDF

Render a web page as a PDF.

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Convert from PDF

12 tools
In browser

PDF to JPG

Convert every PDF page to a JPG.

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In browser

PDF to PNG

Convert every PDF page to a PNG.

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In browser

PDF to Text

Extract all text from a PDF.

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In browser

PDF to JSON

Structured JSON from a PDF.

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Provider

PDF to Word

Convert PDF to an editable DOCX.

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Provider

PDF to Excel

Extract PDF tables into XLSX.

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Provider

PDF to PowerPoint

Convert PDF into editable slides.

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Provider

PDF to HTML

Convert PDF into HTML markup.

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Edit PDF

10 tools
In browser

Rotate PDF

Rotate every page of a PDF.

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In browser

Add Page Numbers

Stamp page numbers onto a PDF.

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In browser

Watermark PDF

Add a text watermark to every page.

Open tool
In browser

Crop PDF

Trim the margins of every page.

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In browser

Metadata Editor

Edit PDF title, author and keywords.

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Provider

Compare PDF

Spot the differences between two PDFs.

Open tool
Provider

Edit PDF

Add text, shapes and images.

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Provider

Header & Footer

Add running headers and footers.

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PDF Security

5 tools
Provider

Protect PDF

Encrypt a PDF with a password.

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Provider

Unlock PDF

Remove a PDF password.

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Provider

Sign PDF

Add a signature to a PDF.

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Provider

Digital Signature

Cryptographically sign a PDF.

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Provider

Redact PDF

Permanently remove sensitive content.

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How it works

01

Drop your files

Drag documents onto the drop zone or pick them from your device. Reorder them freely.

02

Set your options

Choose page ranges, rotation, resolution, watermark text — whatever the tool exposes.

03

Download

Grab the result individually or as a ZIP. Then run it again with new files instantly.

Built like a product, not a toy

Private by architecture

Core tools run entirely inside your browser with pdf-lib and pdf.js. Your documents are never uploaded, so there is nothing to leak.

Instant processing

No queue, no round trip. A 40 page merge finishes in well under a second on a normal laptop.

Pluggable engines

Office, OCR and archival conversions route through a provider layer with automatic fallback between CloudConvert, Adobe and your own worker.

No limits, no sign-up

Every browser tool is unmetered. There is no account to create and no watermark on your output.

What people say

We handle client contracts, so nothing can leave our machines. Being able to merge and redline PDFs locally solved a compliance problem we had for years.

Marta Ruiz

Legal operations lead

Compressing and exporting page images used to mean a desktop app. Now it is one drop zone and a download. The output quality is genuinely identical.

Daniel Osei

Freelance designer

Splitting 400 page scans into chapters takes seconds, and the JSON export drops straight into my indexing script.

Priya Nandan

University researcher

Frequently asked questions

Start with your first document

No account, no upload, no watermark. Pick a tool and drop a file in.

Open the tool library