Aspect fit in box

Client

Compute contain-fit dimensions for uploads.

About Aspect fit in box

Scale image to fit inside max width and height. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

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Nearby workflows on Toolcore

  • Aspect letterbox size — Letterbox dimensions fitting video in container. after you export or copy from the media workspace.
  • Image resize — Max width or height, keep aspect ratio, export WebP/JPEG/PNG—local only. after you export or copy from the media workspace.
  • Thumbnail max dimensions — Scale down to max width or height preserving aspect. after you export or copy from the media workspace.
  • Image convert — Convert, enhance (tone & sharpen), resize, read EXIF & export clean—WebP, JPEG, PNG in browser. after you export or copy from the media workspace.

Common use cases

  • Aspect fit in box for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.