Image Target Size KB
Encode one JPEG, PNG or WebP locally under a chosen byte limit, reducing quality before dimensions.
Encode one JPEG, PNG or WebP locally under a chosen byte limit, reducing quality before dimensions.
Input ≤20 MB, ≤40 MP, each side ≤10,000 px; checked after browser decode. Target 1–20,480 KB (1024 bytes/KB). At most 48 encodes: 8 dimension levels × 6 quality levels (0.95–0.20); PNG uses 8 encodes and ignores quality. If no result meets the byte limit, no download is offered. Quality is a request, not a guaranteed perceptual score. JPEG flattens transparency onto white. New encoding drops metadata and animation; only the decoded first/default frame is used. Inspect visible changes.
Select files, adjust settings, then create the result.
Files stay in this browser. Keep the originals; inspect the new output.
A QUICK WALKTHROUGH
How to use this tool
- Select files, adjust settings, then create the result.
- Input ≤20 MB, ≤40 MP, each side ≤10,000 px; checked after browser decode. Target 1–20,480 KB (1024 bytes/KB). At most 48 encodes: 8 dimension levels × 6 quality levels (0.95–0.20); PNG uses 8 encodes and ignores quality. If no result meets the byte limit, no download is offered. Quality is a request, not a guaranteed perceptual score. JPEG flattens transparency onto white. New encoding drops metadata and animation; only the decoded first/default frame is used. Inspect visible changes.
- Files stay in this browser. Keep the originals; inspect the new output.
Limits and privacy
Input ≤20 MB, ≤40 MP, each side ≤10,000 px; checked after browser decode. Target 1–20,480 KB (1024 bytes/KB). At most 48 encodes: 8 dimension levels × 6 quality levels (0.95–0.20); PNG uses 8 encodes and ignores quality. If no result meets the byte limit, no download is offered. Quality is a request, not a guaranteed perceptual score. JPEG flattens transparency onto white. New encoding drops metadata and animation; only the decoded first/default frame is used. Inspect visible changes.
Download
Files stay in this browser. Keep the originals; inspect the new output.
GOOD TO KNOW
Common questions
Is the original preserved?
The original file is unchanged. The download is a new file.