No images uploaded

Supports JPG, PNG, WEBP, GIF, TIF, SVG, PSD, HEIC

Compress Image

Compress Image Online - Reduce MB to KB

Bulk compress image online for free. Reduce file size from MB to KB with custom quality settings. Supports JPG, PNG, GIF, TIF, SVG, PSD, WEBP, HEIC formats.

What is Image Compression?

Compress image to save storage space, speed up websites, and reduce upload times. The tool reduces file sizes from MB to KB with low, medium, high, and custom quality controls. Some formats keep their original output type, while PNG/TIF/HEIC and design-oriented inputs may be flattened or converted to a browser-friendly output format for practical compression.

Why Compress Image?

Use image compression when a file is too large for a website, email, form, or storage workflow. Low, Medium, High, and Custom settings adjust the encoding tradeoff, but the result depends on content and source format. Compression is designed to run in your browser, although some formats may require helper libraries loaded from third-party hosts; PhoEdit does not intentionally store the selected images. Some formats are flattened or converted, so check the downloaded type, size, dimensions, and visible detail.

How to Compress Images

1

Upload your images - Click 'Upload Images' to compress image, or drag and drop multiple files in various formats

2

Choose compression level - Select Low, Medium, High, or Custom compression

3

Preview and rotate - View thumbnails of your images and rotate them if needed before compression

4

Download results - Click 'Download' to compress and save individual files or get a ZIP archive for multiple images

Compress Image Features

Batch Compression

Compress image in batches to reduce file sizes from MB to KB. Upload up to 50 files at once and compress them all with a single click for efficient processing.

Multiple Format Support

Compress images in JPG, PNG, WEBP, GIF, TIF, SVG, PSD, HEIC formats. Reduce image file sizes in KB and MB while handling both common web formats and professional photography formats.

Custom Quality Control

Choose Low, Medium, High, or Custom settings, then compare the actual file weight and visible result with the source.

Browser-Based Compression

Compression is designed to happen in your browser. Some input formats may load browser-side helper libraries, but selected images are processed locally rather than uploaded to PhoEdit for storage.

Practical compression workflow

Choose compression by destination, not by the smallest number

A photo for a marketplace, a screenshot for support, and a logo for a website can react very differently to the same compression setting. Start with the destination limit, keep the source file, and judge the downloaded result at the size where people will actually see it.

Common tasks and a safer order of work

An upload has a strict file-size limit

  1. Confirm whether the limit is per file and whether pixel dimensions are also specified.
  2. Try a moderate preset first. Use a custom target only when the form requires a hard KB or MB ceiling.
  3. If the target creates visible damage, resize oversized dimensions before trying compression again.

A screenshot contains small text

  1. Keep the original dimensions if the text already fits the destination.
  2. Use a lighter setting than you would for a photograph.
  3. Open the download at 100% and inspect labels, thin lines, and flat-color areas.

A batch contains mixed image types

  1. Test one representative photo and one representative graphic before processing the batch.
  2. Do not assume one preset produces equal quality across JPG, PNG, and WebP files.
  3. Open files from the downloaded ZIP rather than checking only the in-page thumbnails.

What the settings change

Preset strength

A stronger preset can reduce file weight more aggressively, but artifacts become more likely around text, edges, gradients, skin, and repeated textures.

Custom target size

A target is a constraint, not a quality promise. A detailed image may need fewer pixels or a different format before it can meet a very small target acceptably.

Dimensions and format

Compression does not replace resizing. PNG can stay large when transparency or crisp edges matter; JPG or WebP may be more practical when transparency is not required.

Result checklist

  • Compare the downloaded file size with the destination limit.
  • View the output at 100% and at its intended display size.
  • Inspect text, gradients, faces, product edges, and transparent areas.
  • Confirm the downloaded format is acceptable to the receiving website or app.
  • Keep the original until the upload, email, or publication succeeds.

Limits and recovery steps

The result is still too large.
Reduce unnecessary pixel dimensions first, reconsider whether transparency is needed, then try the compressor again.
The result meets the limit but looks damaged.
Use a larger target or lighter preset. A hard limit may require a smaller crop or dimensions instead of stronger encoding.
A layered, animated, or camera-specific file changes.
The browser workflow can flatten layers, animation, or metadata. Export a conventional still image from the source application when those features matter.

Tested guides and workflows

Related reading

Browse the Blog

Compress

How to Compress an Image to 100KB or 200KB

Two real inputs show both sides of target-size compression: a detailed photo that landed close to its targets, and a small PNG screenshot that became larger instead of smaller.

Compress

How to Compress Images

Compare lighter and stronger compression settings, target-size controls, and a mixed-format batch workflow.

Compress

How to Compress Images on Mac

Use Preview for one image, Finder Quick Actions for a mixed-format batch, or PhoEdit when you need to work toward a KB or MB limit.

Recommended Tools

Convert Images to JPG

Turn PNG, GIF, TIF, SVG, PSD, WEBP, and HEIC files into JPG downloads. Processing time and output quality vary by file type, size, and browser support.

Edit Photos Online

Crop, resize, rotate, and adjust images directly in your browser with our editor.

HEIC to JPG Converter

Quickly convert HEIC photos to widely compatible JPG files for easy sharing.

HEIC to PDF Converter

Combine HEIC images into easy-to-share PDF documents online.

Frequently Asked Questions