Compress Image to 170 KB

Compress an image to 170 KB — for portfolio grids where the work itself has to look right.

Supports JPEG, PNG, WebP, GIF, BMP and more — up to 50 MB

How to compress an image to 170 KB.

The target is preset, so this takes three steps — plus what to expect at 170 KB.

1
Step 1

Upload your image

Click upload or drag and drop any JPEG, PNG, WebP, SVG, or GIF file from your device.

2
Step 2

Target is already set to 170 KB

This page is preset to 170 KB, so there is nothing to type. Choose JPEG or WebP output for the most efficient result at this size.

3
Step 3

Compare, then download

Press compress and check the result against your original in the slider. Roughly 1850 × 1850 px is the realistic pixel budget at 170 KB — download when it looks right.

Getting the best results

Two tiers, not one

Compress the grid image for speed and serve a larger, higher-quality file when someone opens an individual piece. Visitors only pay the higher cost when they have asked to.

Watch for banding in gradients

Skies and studio backdrops show compression banding before anything else. If a portfolio image bands at 170 KB, raise the target for that specific file rather than the whole set.

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All image tools.

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Image Converter

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Image Cropper

Crop images to any size or predefined aspect ratio.

Bulk Compressor

Compress multiple images at once and download as ZIP.

Image Rotator

Rotate images by any angle or flip horizontally/vertically.

Compressing an image to 170 KB.

What 170 KB is actually for, what it can hold, and how to get there without wasting quality.

What 170 KB is good for

170 KB is a photographer's compromise. A portfolio grid is judged on image quality, so compressing too hard undermines the entire point of the page — but a grid of unprocessed files is unusable.

The resolution is to compress the grid generously and reserve full quality for the detail view, where the visitor has chosen to look closely.

Where this size is required

Photography portfolio grids, design case study imagery, gallery thumbnails at large display sizes, and creative showcase pages.

What to expect at 170 KB

Photographs hold quality to roughly 1850 × 1850 pixels, which stands up to close inspection at typical grid display sizes.

Frequently asked questions.

Everything you need to know about compressing images to 170 KB.

Not at this level, if you are deliberate. The risk is uniformly over-compressing; compressing the grid moderately and serving full quality on the detail view protects the work while keeping the page fast.

That is a business decision rather than a technical one, but note that watermarks add hard edges and fine detail, which compress poorly. A watermarked image may need a slightly higher target.

Not at this level if you are deliberate. The risk is compressing everything uniformly; compress the grid moderately and serve full quality on the detail view.

Smooth gradients give the encoder very little variation to work with, so it approximates them in visible steps. If a sky bands, raise the target for that specific image.

That is a business decision, but note the technical cost: watermarks add hard edges and fine detail that compress poorly, so a watermarked image may need a higher target.

For a photographic JPEG, roughly 1850 × 1850 px is the practical ceiling before compression becomes visible. Flat graphics, screenshots, and document scans do considerably better, because they contain less fine detail to preserve.

No. Images are processed on our secure server only to perform the compression and are deleted immediately after your download. They are never stored, shared, or accessed by anyone.