Privacy
Google Drive & Google Photos
Sign in once with your own Google account to unlock both integrations — each person signs
in with their own account, and files move directly between Google and your browser using your own access
token; nothing passes through any server we control. Disconnect any time to revoke access.
- Source — the Google Drive button opens a picker where you can multi-select several
folders and/or images in one dialog. The Google Photos button opens photos.google.com in a new
tab with its own built-in multi-select; come back here once you've picked, and the app waits for you.
- Destination — set "Save output to" (in the Destination panel) to Google Drive to upload
compressed files into a new Drive folder (recreating your source folder structure underneath it), or to
Google Photos to upload them into your library, optionally into a named album. If an upload fails
mid-run, that file falls back into the ZIP download instead of being lost.
Multiple Folders
Local "Folder" picking is one folder per click — click it again (or drag another folder
in) to add more; everything merges into the same working set instead of replacing it. The same applies to
repeating a Google Drive or Google Photos pick.
Resize Modes
- Fit — scale to fit within Max W × Max H, preserving aspect ratio
- Fill & crop — scale to fill the box exactly, center-crop
- Exact — stretch to exactly Max W × Max H
- Percentage — scale to X% of original dimensions
- Keep — no resize, only format/quality conversion
Filename Tokens
{folder} folder path · {name} base name · {w}
output width · {h} output height · {ext} extension · {idx} index ·
{date} EXIF date (YYYY-MM-DD)
Keyboard Shortcuts
- Space — Pause / Resume processing
- Escape — Close open modals
- Delete — Remove selected files
Unsupported Formats
HEIC and animated GIF are listed
as input options but are not natively decodable by browsers via canvas. HEIC files will fail silently with
an error badge. GIF animation will be flattened to the first frame only. Use a converter first for HEIC.
Concurrency
Performance mode controls worker concurrency. Auto balances cores and memory, Safe limits
RAM usage, Fast uses more CPU, and Max is intended for powerful desktops.
Target Size
Target size retries lossy encodes at lower quality until each image is close to the
requested KB value. PNG and BMP are not quality-scaled by browsers.
Smart Output
Auto format chooses a browser-supported output format per file. The larger-output guard
keeps originals when recompressing would increase size and no resize, watermark, enhancement, or orientation
fix is needed.