도구 모듈 로딩 중...
How to Use
1. Select Photo
Choose a single JPG, PNG, or WebP image.
2. Choose Target Size
Select 200KB, 500KB, 1MB or type a custom target in KB.
3. Compress & Save
Verify the output byte count is under the budget, then download as JPG.
Processing Limits & Specs
- Recommended max single file: 10MB or 20 Megapixels (20MP).
- Standard SI unit definitions apply: 1KB = 1,000 bytes, 1MB = 1,000,000 bytes.
- Transparent PNGs are composited onto a clean white background for JPG output.
- If reaching the target is physically unfeasible, it warns clearly instead of falsely claiming success.
Frequently Asked Questions (FAQ)
Q. Are images uploaded to any server?
Never. Processing is performed locally using the HTML5 Canvas API inside your browser.
Q. Is the result guaranteed to be strictly below the target byte size?
Yes. The algorithm validates the final encoded blob size and ensures it stays strictly within your limit.
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