Question 1

Is my image uploaded anywhere?

Accepted Answer

No. Every transformation — compressing, resizing, cropping, converting — runs entirely in your browser using the Canvas API. The file never leaves your device.

Question 2

What image formats are supported?

Accepted Answer

You can upload JPG, PNG, WebP, GIF, BMP, AVIF, or HEIC (the default format on iPhone photos). Output as JPG, PNG, or WebP.

Question 3

Can I combine size, dimensions, and format in one go?

Accepted Answer

Yes — that's the whole point. Turn on any combination of maximum file size, width/height, crop, rotation, and output format, and CrispPic applies all of them in a single pass.

Question 4

Is it really free?

Accepted Answer

Yes, with no account, no watermark, and no limit on how many images you process.

Question 5

How does CrispPic hit an exact file size?

Accepted Answer

It binary-searches the encoding quality until it finds the highest quality that still lands under your target. If the image can't fit at any quality, it's resized down and the search runs again.

Question 6

Why isn't my result exactly 100KB?

Accepted Answer

The result is guaranteed to be at or under your target, but landing exactly on it isn't possible — we always err on the safe side rather than going over.

Question 7

Which sites need a maximum file size?

Accepted Answer

Common examples: government and visa application portals, job application forms, e-commerce product listings, and forums or CMSs with upload limits.

Question 8

What happens if I only set a width?

Accepted Answer

The height is calculated automatically to preserve the original aspect ratio — the image won't be stretched or squashed.

Question 9

Can I resize to an exact width and height without distortion?

Accepted Answer

Yes — with the aspect ratio locked, CrispPic fits your image inside the box you set without stretching it. Unlock it if you specifically want an exact, possibly non-proportional, size.

Question 10

Can I resize and set a maximum file size at the same time?

Accepted Answer

Yes — turn on 'Maximum file size' as well and both requirements are applied together in one pass.

Question 11

What crop ratios are available?

Accepted Answer

Free-form, square (1:1), landscape (4:3), portrait (3:4), widescreen (16:9), story (9:16), or a custom ratio you type in.

Question 12

Can I adjust the crop after applying it?

Accepted Answer

Yes — click the pencil icon next to 'Crop' to reopen the editor, or the × to remove the crop entirely.

Question 13

Can I crop and compress to a target size at once?

Accepted Answer

Yes — turn on 'Maximum file size' after cropping and both are applied together.

Question 14

Which formats can I convert to?

Accepted Answer

Output as JPG, PNG, or WebP. Input accepts JPG, PNG, WebP, GIF, BMP, AVIF, and HEIC/HEIF.

Question 15

Will converting a transparent PNG to JPG lose the transparency?

Accepted Answer

Yes — JPG has no transparency channel, so transparent areas are filled with white. CrispPic warns you before it happens; choose PNG or WebP to keep transparency.

Question 16

My iPhone photos are HEIC — can I convert those?

Accepted Answer

Yes. Upload a .heic file and CrispPic converts it automatically before applying whatever format you choose.

Frequently asked questions

General

Compress

Resize

Crop

Convert