Free online tools that run in your browser
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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.
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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.
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Image Compressor
Compress JPG, PNG and WebP images in your browser — up to 80% smaller with no visible loss. Batch, target size (e.g. under 100 KB), no upload.
Make photos and graphics smaller for email, websites, forms and social media — without visible loss. Drop in one image or a hundred, choose a quality level or a target size such as “under 100 KB”, and download the results one by one or as a ZIP.
The compressor uses MozJPEG, libwebp and OxiPNG — the same encoders used by professional image tools — running in your browser. Your images are never uploaded, and photo metadata such as GPS location is removed by default.
How to use Image Compressor
- Click “Choose images”, drop images onto the page, or paste one with Ctrl+V.
- Choose Quality (Best quality, Balanced or Smallest file) or Target size and enter a size, e.g. 100 KB.
- Optionally convert to WebP for the smallest files, or limit the width, e.g. to 1920 px.
- Check the savings and compare before and after with the slider, then download each image or all as a ZIP.
Features
- Compress JPG, PNG and WebP (GIF, BMP and AVIF are converted).
- Quality presets or a custom quality slider.
- Target size mode: compress to under 50 KB, 100 KB, 200 KB, 1 MB or any size you need.
- Lossless PNG optimisation with OxiPNG — pixel-perfect, just smaller.
- Convert to WebP for files typically 25–35% smaller than JPG at the same quality.
- Optional maximum width (4K, Full HD, 1280 px…) with high-quality Lanczos resizing.
- Before/after comparison slider and size savings per image.
- Batch compression and ZIP download; metadata (including location) removed by default; no upload.
Lossy vs lossless compression
Lossy compression (JPG, lossy WebP) throws away detail the eye barely notices — fine texture and subtle colour changes — and can make photos 60–90% smaller. Lossless compression (PNG with OxiPNG, lossless WebP) only stores the same pixels more efficiently, so the image is identical but the saving is smaller, typically 5–40%.
For photos, lossy compression at quality 75–85 is visually indistinguishable from the original for most people. For screenshots, logos and graphics with text, keep PNG or use WebP so edges stay crisp.
JPG vs PNG vs WebP: which format to choose
Each format has a job. When in doubt, WebP gives the smallest files and is supported by all current browsers.
| Format | Best for | Transparency | Typical size |
|---|---|---|---|
| JPG | Photos, email attachments, forms | No | Small |
| PNG | Screenshots, logos, graphics with text | Yes | Large for photos |
| WebP | Websites and apps: photos and graphics | Yes | Smallest (25–35% below JPG) |
How to compress an image to 100 KB (or any size)
Choose “Target size”, enter 100 and pick KB. For each image the compressor searches for the highest quality that still fits; if even low quality is too big, it reduces the dimensions step by step until it fits. Forms that require “JPG under 200 KB” or “under 1 MB” work the same way. Very large photos may need a smaller size limit than you'd expect — check the result with the comparison slider.
What savings to expect
Savings depend on the image and on how it was saved before. Photos straight from a phone or camera shrink the most; images that were already optimised for the web shrink little — in that case the tool keeps the original.
| Image | Biggest saving comes from |
|---|---|
| Phone or camera photo (JPG) | Balanced quality, plus a maximum width if it is for the web |
| Photo for a website | Converting to WebP and limiting the width |
| Screenshot or graphic (PNG) | Lossless PNG optimisation, or WebP |
| Image for a form with a size limit | Target size mode |
Does compressing remove EXIF and location data?
Yes — by default every compressed image is saved without metadata, which removes the camera model, date and, importantly, the GPS location phones store in photos. That is safer when sharing online. If you need the original date and camera information, tick “Keep camera info (EXIF) in JPGs”; the tool warns you when that information includes a location.
Frequently asked questions
Is this image compressor free and private?
Yes. It is free with no limits, and images are compressed in your browser — they are never uploaded to a server.
Will compressing reduce the quality?
With Balanced or Best quality, differences are very hard to see. Use the comparison slider to check, and choose Best quality for images you will edit again or print.
How do I compress an image to 100 KB?
Choose “Target size”, type 100 and select KB. The tool finds the best quality that fits, and shrinks the image slightly if it has to.
Why is my PNG still large?
PNG is lossless, so photos saved as PNG stay big. Convert them to JPG or WebP for a much smaller file. Keep PNG for screenshots, logos and images with transparency.
Why was my image not made smaller?
It was already well compressed. Rather than give you a bigger file, the tool keeps the original. Try a lower quality, WebP, or a maximum width.
Can I compress many images at once?
Yes. Add as many as you like — they are processed in parallel — and download them all as a ZIP.
Can I compress HEIC photos from an iPhone?
Convert them with HEIC to JPG first; it produces a compressed JPG directly.
Does it work on phones?
Yes, on current Android and iPhone browsers. Very large photos (over 50 megapixels) may be too big for a phone's memory.