resize image to 100x100 for an exact square frame
Use this page to resize image to 100x100 when you need an avatar or icon slot on a form or a directory. Cover center-crops to the exact 100 by 100 frame.
Preset: Resize image to 100x100
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Steps to resize image to 100x100
- Add the picture. It stays in this tab while you resize image to 100x100.
- Confirm the frame is 100 by 100 pixels. Cover is selected, lock aspect is on, and do not enlarge is off.
- Run the resize. Cover center-crops to that exact frame, and the pixels are resampled with Lanczos.
- Download the picture. If the subject sits in a corner, the crop may have cut it, so look before you submit the file.
How this target is applied
Cover center-crops to the exact 100 by 100 pixel frame. The short side fills the square and the extra edges are cut from the centre outward. A wide photo loses the left and right. A tall photo loses the top and bottom.
Do not enlarge is turned off, so a smaller original can grow to 100 by 100. The pixels are resampled with Lanczos. A shrink from a large photo stays sharper than a blow up from a tiny one.
Why 100 by 100 pixels
Avatar and icon slots on forms and directories ask for a tiny square. 100 by 100 pixels is that slot. A wide photo will lose the sides, because cover center-crops to the exact frame. Put the face or the mark in the centre before you trust the edges.
Forms, directories, and page layouts ask for an exact square so every picture lines up. 100 by 100 is the number they print, and it is the number this page opens with.
What the crop and the resample do
Expect a large photo to be cropped and sharpened by the shrink, and a small photo to grow softer. Lanczos builds the new pixels. It does not add a border, and it does not letterbox.
The output is exactly 100 pixels wide and 100 pixels tall when the source is large enough to crop, and the same frame when a small source is enlarged. Look at the corners. That is where a center-crop hides a mistake.
Limits, formats and output
| Accepted input | JPEG, PNG, WEBP, GIF, BMP, HEIC, AVIF |
|---|---|
| Files per batch | 1–100 |
| Soft size warning | 50 MB each |
| Hard stop | 500 MB total in memory |
| Output | The chosen image format, or a ZIP for a batch |
| Account | None. The tool runs in this tab. |
Your file never leaves your device
Your picture is processed only in this browser and is never uploaded. The work runs in a Web Worker in this tab, using WebAssembly for the heavy parts, and the result comes back as a local blob. This site does not upload the file, store it, or log its name.
To verify: load the page, turn on airplane mode, and drop the file again. It still finishes. Or open DevTools, choose Network, and watch the run: there is no upload. The architecture is described on How it works.
Frequently asked questions
Will cover cut the picture at 100 by 100 pixels?
Yes, when the original shape does not match 100 by 100 pixels. Cover center-crops to the exact frame, keeping the centre and trimming the edges. A wide photo going into a square loses the sides. Put the subject near the middle, then check the download before you submit it.
Can a smaller original grow to this frame?
Yes. Do not enlarge is turned off on this preset, so a smaller original can grow to 100 by 100 pixels. The pixels are resampled with Lanczos. Growth looks softer than a shrink, because the tool has to invent pixels that were not in the file.
Why open on 100 by 100 pixels?
Because an avatar or icon slot on a form or a directory. You should not have to remember the two numbers or guess a percentage. The page opens with width and height already set, fit on cover, and do not enlarge off.
Does a DPI value add pixels here?
No. On this preset the DPI field is 0, so no density note is written, and a DPI value would not add pixels anyway. The frame is only the pixel width and height. Print pages on this site write 300 DPI as metadata beside a pixel frame.
What if I needed a different frame?
Change the width and height before you run. This page opens on 100 by 100 pixels so the form size is already filled in. Lock aspect is on, and fit is cover, which is what makes the output exactly that frame rather than a box the picture merely fits inside.
Last updated 2026-09-26. By Tam.