Compress Image to 30KB Online Free

Pre-set to 30 KB — you can change it anytime.

Drop your image here

or browse files — JPG, PNG, WebP

Target size (KB)

Output format

Max quality 92% The tool finds the highest quality that fits your target size.

PNG images are converted to JPEG for compression (smaller files). Transparency becomes white.

Done — here’s your compressed image

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How it works

Upload

Drop your photo into the box above — JPG, PNG or WebP, straight from your phone or camera.

Set target size

The target is already set to 30 KB. Pick JPEG or WebP, then hit Compress image.

Download

Check the preview and your savings, then download a file guaranteed under 30 KB.

Why 30KB is a common target

Thirty kilobytes sits in the sweet spot of small-but-usable. Several exam and application portals set photo limits at 30KB, and it is a popular ceiling for thumbnails, comment avatars and preview images across forums and dashboards — big enough to look decent at a few hundred pixels wide, small enough to load instantly on a 3G connection.

Most phone photos land between 2 and 8MB, so reaching 30KB means cutting roughly 99% of the file. That sounds drastic, but the math works because the image will be displayed small. This tool finds the highest quality that still fits under 30KB and only trims dimensions if quality reduction alone cannot get there.

Tips for best results at 30KB

Match dimensions to the display size. A 30KB image shown at 300 pixels wide can look crisp; the same file stretched to 2000 pixels will not. Shrink the resolution to match where it will appear.
Faces: crop first, compress second. For ID-style photos, a tight crop around the face before compressing keeps features recognizable at 30KB.
Try WebP first. At 30KB, WebP typically looks a full step cleaner than JPEG. Switch to JPEG only if the uploader demands it.
Avoid double compression. Start from the original photo, not a WhatsApp-forwarded copy — artifacts stack with every round of compression.
Use the quality slider wisely. The default 92% ceiling is a good balance. Lowering it lets the tool keep more resolution at the same 30KB, which sometimes looks better for detailed images.

Where a 30KB image is used

Exam and application forms — photo fields capped around 30KB on several portals.
Thumbnails — video, article and product thumbnails that must load fast.
Profile photos — avatars on forums, dashboards and communities with KB caps.
Email signatures — small logo images that should not bloat every email.
Mobile uploads — quick shares on slow connections where every kilobyte counts.

Frequently asked questions

Will a 30KB image look blurry?

Not at its intended display size. A 30KB photo looks crisp as a thumbnail, avatar or form photo at a few hundred pixels wide. It will soften if you stretch it full-screen — keep the dimensions matched to where it will be shown.

Should I pick 30KB or 50KB?

Follow the portal's rule exactly — if it says 30KB maximum, use 30KB. If there is no rule, 50KB gives you visibly better quality for barely more data, and this tool has a one-click 50KB page too.

What if my photo cannot reach 30KB?

It can. If lowering the quality is not enough, the tool automatically reduces the image dimensions in small steps until the file fits under 30KB, and shows you a note when it does.

Which format is best for 30KB — JPEG or WebP?

WebP usually looks cleaner at 30KB. But many exam and government portals accept only JPG, so check the upload rules first — pick JPEG when the portal requires it.

Do I need to resize before compressing to 30KB?

No. Upload and compress — the tool reduces resolution itself if quality reduction alone cannot hit 30KB. For faces, cropping tightly first gives the best results.