Frequently Asked Questions

ShrinkTo uses a binary-search algorithm that intelligently tries different JPEG quality levels until the output image fits within your target size. We start at a balanced quality, check the resulting file size, and adjust up or down with each pass. If quality reduction alone is not enough, we progressively scale down dimensions while keeping the image as sharp as possible. The whole process usually completes in under a second.

No. ShrinkTo runs entirely in your browser using the HTML5 Canvas API. Your images never leave your device. We have no backend, no database, and no way to see, store, or transmit your files. You can verify this yourself: open your browser's DevTools, go to the Network tab, and watch while you compress — you'll see zero upload activity.

ShrinkTo accepts JPG, PNG, WebP, GIF, BMP, HEIC, and AVIF as input. The output is delivered as an optimized JPEG by default — JPEG is the most efficient format for hitting strict file-size targets while keeping photos sharp. You can also output as PNG or WebP.

Yes — fully and forever free. No signup, no watermarks, no daily limits, and no surprise paywalls. Because all processing happens in your browser, we don't have server costs to recover.

Absolutely. Common use cases: Passport applications (20 KB photo, 10 KB signature), UPSC and SSC exam forms (20–50 KB), Aadhaar update portals, state PSC applications, university admissions, NEET/JEE applications, banking forms (SBI, IBPS, RBI), and most other Indian government and exam portals.

Some quality loss is unavoidable when compressing to a strict target — that's how compression works. However, ShrinkTo always uses the highest quality possible that still fits your target size. For most photos at reasonable targets (100 KB and up), the result is visually indistinguishable from the original. You'll always see a side-by-side preview before downloading.

ShrinkTo accepts source images up to 50 MB. For nearly all practical use cases — phone photos, DSLR exports, scanned documents — this is far more than you'll need.

Yes — ShrinkTo runs in any modern browser on phone, tablet, laptop, or desktop. No app install needed. On mobile, you can pick photos from your gallery or take a new photo directly with your camera.

Yes. Drop or select multiple images at once and ShrinkTo will queue them all to the same target size. After processing, download them individually or as a single ZIP.

For partnership inquiries, fill out the form at /partner. For support questions, you can also email us — see the contact section in /about.