TinySandyFree Online Tools

Image Compressor

Make pictures lighter for websites, email and uploads. Drop in one or many images, choose a quality level and see each file's size before and after, with the percentage saved. If a result would be larger than the original, the tool tells you and keeps the original file instead.

Image Editing Runs in your browser

Compress Your Images

Compression is done in your browser, so your pictures stay on your device. Metadata such as EXIF and GPS is not kept in compressed files.

Drag and drop your image (JPG, PNG, WebP, GIF or BMP) here, or click to browseAccepted: JPG, JPEG, PNG, WEBP, GIF, BMP. Up to 40 MB each.
Lower quality gives a smaller file. 70-80% is a good starting point for photos. For PNG the slider sets how many colours are kept (100% = lossless).
px
Leave empty to keep the original dimensions.
Fills transparent areas when the result is JPEG.

How to Use the Image Compressor

  1. Add your JPG, PNG, WebP, GIF or BMP images.
  2. Move the Quality slider and choose an output format. JPEG and WebP suit photos; PNG keeps sharp graphics.
  3. Optionally limit the longest side to shrink very large pictures.
  4. Press Compress, compare the sizes in the table and download the files or the ZIP.

About This Tool

Website owners improving page speed, people attaching photos to email or forms with size limits, and anyone tidying a photo library.

Input: JPG / PNG / WebP / GIF / BMP  ·  Output: JPG / WebP / PNG.

Features and Limitations

Features

  • Before and after size for every file, plus the total saving.
  • Honest result: if compressing makes a file larger, the original is kept and you are told.
  • JPEG and WebP quality control, and palette reduction for PNG.
  • Optional longest-side limit for oversized photos.
  • Batch processing with one ZIP download.

Limitations

  • Compression of JPEG and WebP is lossy: some detail is discarded, more at low quality.
  • PNG savings come from reducing the number of colours, which can cause banding in smooth gradients; use JPEG or WebP for photographs.
  • Already well-optimised images may not shrink; they are returned unchanged.
  • EXIF data (camera, GPS) is removed from compressed files.
  • WebP output needs a browser that can encode WebP; otherwise PNG is used and you are told.
  • Processing happens on your device, so very large files depend on your browser's available memory.

Example

A 3.2 MB phone photo compressed to JPEG at 75% commonly lands between 400 KB and 900 KB. Exact numbers depend on the picture, and the table shows the real figures for your file.

Frequently Asked Questions

What quality should I choose?

For photos, 70-80% usually looks the same as the original at a fraction of the size. Go lower for thumbnails and higher for pictures you will edit again.

Why did my file not get smaller?

Some files are already compressed as far as they sensibly go. When the result would be larger the tool keeps your original and shows Original kept in the table.

Is PNG compression lossless?

At 100% the PNG is re-saved without losing any colour. Below 100% the number of colours is reduced, which is lossy but can shrink graphics a lot.

Are my images uploaded?

No. Compression runs in your browser and nothing is sent to a server.

Does compression remove the picture's metadata?

Yes. Re-encoding through the canvas drops EXIF, GPS and other embedded data, which is also good for privacy.

Related Tools

More like this: all Image Editing tools, all Image & Design tools or the TinySandy home page.