Compared · checked 2026-10-24
The best free image resizers
Resizing a folder of photos for a website, an email or an application form should be quick and free. These three tools all do batches; they differ in options, limits and whether your photos leave your computer.
We make Resizer, one of the tools on this page. Every fact about the other tools comes from their own pages, linked under each one, as they read on 2026-10-24. Prices and features change: check each site before you choose.
How we compared them
- Free, without a cap on how many pictures
- Photos stay on your device
- Ways to set the size: pixels, percentage, long edge, file size, crop
- Output formats and extras
At a glance
| Tool | Price | Free limits | Photos processed | Account needed | Resize by | Output formats |
|---|---|---|---|---|---|---|
| Resizer ours | Free | None; files are done one by one in a queue | On your device | No | Width, height, long edge, percentage or file size | JPEG, PNG, WebP, AVIF; MP4 or WebM for video |
| BIRME | Free | None stated | In your browser | No | Width and height, ratio, crop | JPEG, PNG, WebP, AVIF |
| iLoveIMG | Free; Premium €5 a month billed yearly | 30 files and 200 MB per task, with ads | On their servers, deleted within two hours | No | Pixels or percentage | JPG, PNG, SVG, GIF |
| Feature | Resizer ours | BIRME | iLoveIMG |
|---|---|---|---|
| Batch of pictures | Yes | Yes | Yes |
| Free limit per batch | None | None stated | 30 files, 200 MB |
| Resize by pixels | Yes | Yes | Yes |
| Resize by percentage | Yes | Not stated | Yes |
| Resize to a file size | Yes | Not stated | Not stated |
| Crop to an exact size | Yes | Yes | Partly |
| Smart crop (focal point) | No | Yes | Not stated |
| Keep the aspect ratio | Yes | Yes | Yes |
| AVIF output | Yes | Yes | Not stated |
| Video resizing | Yes | No | Not stated |
| Photos stay on your device | Yes | Yes | No |
| No account needed | Yes | Yes | Yes |
| No ads | Yes | No | No |
1. Resizer (ours)
Best for: Batches that must fit a size or a file limit, such as under 100 KB, and videos too, without uploading.
Good
- Finds the highest quality that fits a file size limit
- Fit, cover, stretch and fit-inside, with an anchor; presets for social, email and 4K
- Resizes videos to MP4 or WebM with the audio kept
- Saved presets; results download in a ZIP
- Works on your phone, tablet and computer in the browser, even offline
Not so good
- Still in beta
- No smart crop with focal point detection, batch renaming or watermark
- A file size limit needs JPEG, WebP or AVIF; PNG only gets smaller with fewer pixels
- Big batches take longer on older computers
2. BIRME
Best for: Cropping a batch to one exact size with a smart focal point, plus renaming and watermarks.
Good
- Processes images locally; nothing is uploaded, by its own description
- Smart crop with automatic focal point, or a custom crop per image
- Extras: text and image watermarks, borders, batch rename, ZIP or folder save
- AI background removal and 2× to 4× super-resolution
Not so good
- Its pages do not mention resizing by percentage or to a file size
- Pictures only, no video
- The page carries ads
BIRME website · Sources: BIRME home
3. iLoveIMG
Best for: A quick online resize of up to 30 files, with Google Drive and Dropbox import.
Good
- Resize by pixels or percentage, keep the aspect ratio, never enlarge
- Imports from Google Drive and Dropbox
- Part of a set of image tools, with an API
Not so good
- Free tasks are limited to 30 files and 200 MB, with ads
- Files are uploaded and processed on its servers
- Cropping is a separate tool
iLoveIMG website · Sources: iLoveIMG resize, iLoveIMG pricing, iLoveIMG security, iLoveIMG photo editor
Which one to choose
Resizer is our pick for this page's criteria: no cap, nothing uploaded, and the most ways to set the size, including a file size limit, plus video.
Choose BIRME if you need to crop a batch to one exact size with smart crop, renaming and watermarks; it is just as private. Choose iLoveIMG for a quick online job of up to 30 files from Google Drive or Dropbox.
Questions
How do I resize many images at once for free?
All three do batches. Resizer and BIRME have no stated limit and work in your browser; iLoveIMG takes up to 30 files per free task.
Can I resize a photo to under 100 KB?
Resizer has a Maximum file size setting that finds the best quality under your limit. BIRME and iLoveIMG do not mention a file size target on their pages.
Are my photos uploaded?
Resizer and BIRME resize in your browser. iLoveIMG processes files on its servers and deletes them within two hours.
Can I resize a video too?
Resizer resizes videos to MP4 or WebM and keeps the sound. BIRME is for pictures only.
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