Bulk convert and optimize

Everything here runs on your device with Web Workers. Files are never uploaded in local mode.

Drop images here to shrink them

Up to 100 files per batch, 35 MB per file. Nothing leaves this device in local mode.

Accepted: JPG, PNG, WebP, AVIF, HEIC/HEIF, BMP, TIFF, GIF, SVG, ICO

Local mode: your images are processed on this device and are not stored in the cloud.

Nothing queued yet

Add images above and they appear here with live progress, per-file savings and a side-by-side comparison. Tune the settings on the right first if you want a specific format, size or target weight.

1Drop a folder or pick files. Up to 100 per batch, 35 MB per file.
2Choose a preset, or set format, quality, dimensions and target size yourself.
3Process on this device and watch the queue run with pause, resume and retry.
4Download the ZIP and metadata CSV, confirm it saved, then clear the workspace.

Device compatibility

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Limited

Comfortable here: up to 50 images per batch, files up to 15 MB each.

Conversion settings

Preset

1600 px WebP at quality 76, metadata stripped.

Output format

Quality

Maximum width (px)

Maximum height (px)

Resize mode

Bulk file naming

Target file size mode

Temporary cloud workspace

Optional. Local processing stays the default and nothing leaves this device unless you choose to save a copy. Cloud copies live in private storage, are deleted the moment you confirm your download, and are removed automatically within 24 hours regardless.

Local mode is the default

Unless you explicitly save to the temporary cloud workspace, your images are processed only on this device and never uploaded.

Honest limits

Conversions depend on the codecs this browser provides. HEIC/HEIF and some TIFF files cannot be decoded everywhere, and a browser can only know a download started, never that the file was saved.