Section library · FAQs

FAQs

Four FAQ patterns — accordion, two-column cards, numbered dividers and compact rules. All warm neutrals, whisper borders.

01 Accordion — single column details · warm cards

Does Compressy upload my images?

No. Everything runs locally on your PC. No upload, no cloud processing, no account.

Which formats are supported?

JPEG, PNG, WebP, AVIF and more — with control over quality, engine and output format.

Can I undo a compression?

Yes. When “Overwrite originals” is on, Compressy keeps a copy in a backup folder.

Is it really free?

Free. Offline. Built for Windows. No dashboard, no subscription.

How fast is it?

About 1,000 images in 5 minutes on a mid-range PC — no upload/download step.

02 Two-column — Q&A cards 2-col · 12px

FAQ

Everything you need to know.

Do I need an account?

No. Open the app and select a folder. That is the whole setup.

Will quality suffer?

You control it. Quality 85 by default — slide down for size, up for fidelity.

What about large folders?

Batch with concurrency. The progress bar and header stats stay live.

Where are backups?

Originals go to a backup folder when overwriting.

Can I rename outputs?

Yes — {prefix}-{NNNN}.{ext} with a live preview in settings.

Is it offline forever?

Yes. No internet is required to compress. Your images stay on disk.

03 List — numbered with dividers hairline

Is Compressy private by default?

Your images never leave your computer. Local processing, no cloud required.

Which formats handle best?

JPEG (mozjpeg), PNG (oxipng), WebP and AVIF — with keep-original or transcode.

Can I resize while compressing?

Yes — Max W × H, downscale only, keep aspect. Off by default.

How do I verify a download?

Each release lists a SHA256. Run certutil -hashfile to check.

04 Compact — inline Q / muted A mono eyebrows

No cloud?

No uploads. No cloud queue. Files stay on disk.

No account?

No sign-up, no dashboard, no subscription.

No waiting?

No upload/download step. Your PC does the work.