Free online tools that run in your browser
Your files never leave your device · No login required · 100% free
Search results
Why LMPB Tools?
Simple, private tools that just work — right in your browser.
- Private Everything runs in your browser. Files are never uploaded.
- No login required No account, no sign-up, no email. Just open a tool and use it.
- Fast No upload or download wait — results appear instantly.
- Free All tools are free to use, with no limits.
- Works everywhere Phone, tablet or computer, in any modern browser.
🆕 New tools
★ Popular tools
Recently used
Frequently asked questions
Are my files or text uploaded anywhere?
No. Every tool runs inside your browser on your own device. Nothing you enter or open is sent to a server.
Do I need to create an account or log in?
No login is required. There are no accounts — open any tool and start using it straight away.
Are the tools really free?
Yes. All tools are free, with no limits or watermarks. The site is supported by ads.
Does it work on my phone?
Yes. The tools work in any modern browser on phones, tablets and computers.
Can I use the tools offline?
Once a tool has loaded it does its work on your device, so it keeps working even if your connection drops.
All tools
Compress PDF
Reduce PDF file size by shrinking images and removing unused data. Choose low, recommended or strong compression — in your browser.
Make PDFs small enough for email attachments and online application forms. Large PDFs are usually large because of photos and scans — this tool shrinks those images to a sensible resolution, removes unused data and packs the file more tightly.
Everything happens on your own device. Unlike most online compressors, your document is never uploaded to a server.
How to use Compress PDF
- Click “Choose PDF file” or drop your PDF onto the page.
- Pick a level: Low (best quality), Recommended or Strong (smallest file).
- Click “Compress PDF”.
- See the new size, then download the compressed PDF.
Features
- Three compression levels.
- Images are only replaced when that makes them clearly smaller — sharp diagrams stay sharp.
- Text stays text: selectable, searchable and crisp.
- Never gives you a bigger file — it tells you when a PDF is already optimized.
- No upload, no sign-up, no watermark.
Frequently asked questions
How much smaller will my PDF get?
Scanned documents and PDFs with photos often shrink by 50–90 %. PDFs that are mostly text are usually already small and may not get much smaller.
Which level should I choose?
“Recommended” suits most documents. Use “Strong” when a website demands a very small file (for example under 1 MB), and “Low” when image quality matters most.
Is my PDF uploaded?
No. It is compressed by your own browser; nothing leaves your device.
Will text become blurry?
No. Only images are recompressed. Text and vector drawings are not changed.
Why didn't my file get smaller?
It is already efficiently compressed, or it has no large images. Some images (for example CMYK print images) are left untouched to keep their colours correct.