Compress an image to any KB size
Government portals, job sites and exam forms often reject photos that are even one kilobyte over the limit, and some also reject files that are too small. This tool solves both: it finds the best quality that fits under your maximum and, if needed, pads the file to reach your minimum. It can also resize to exact pixels (for example 200 × 230 px) and write the DPI into the file, which PAN card portals check.
Popular sizes
- Compress image to 10 KB: tiny signature uploads, some state-government portals, and thumbnail images for old forms.
- Compress image to 20 KB: SSC and IBPS signatures (10–20 KB), scholarship portals and many state PSC forms.
- Compress image to 30 KB: NEET and JEE Main signatures (4–30 KB), UTIITSL PAN photos (max 30 KB) and college admission portals.
- Compress image to 50 KB: SSC and IBPS photos (20–50 KB), PAN card photo and signature (max 50 KB), and most job application portals.
- Compress image to 100 KB: UPSC signatures, the IBPS handwritten declaration (50–100 KB), passport-photo uploads and email attachments.
- Compress image to 200 KB: NEET and JEE photos (10–200 KB), UPSC photos, visa portals and university forms.
- Compress image to 500 KB: document scans, certificates, marksheets and portals with a 500 KB cap.
Exam presets
Need sizes for a specific exam? Use the exam photo resizer or go straight to SSC, IBPS, UPSC, NEET UG, JEE Main, PAN Card.
How to use the Resize Image to KB (Exact Size) tool
- Tap Choose a photo or signature and select your image (JPG, PNG, WebP or HEIC).
- Pick a preset such as Under 50 KB or an exam preset, or type your own Min KB, Max KB and pixel size.
- If you set both width and height, drag the photo and use zoom to frame your face inside the box.
- Check the green ✓ Pass badge, then tap Download.
Why SaralKit?
- Free forever: no "credits", no trial, no premium tier, no watermark and no daily limit.
- No account, ever: nothing to sign up for. Just open the page and use it.
- No data stored: your files and the numbers you type are processed by your own browser. We never upload, store or see them.
- Works offline: once the page has loaded, most tools keep working without internet.
- Open source: anyone can read the code on GitHub.
Frequently asked questions
How do I reduce a photo to exactly 50 KB?
Choose your photo, pick "Under 50 KB" (or type 50 in Max KB) and the tool finds the highest quality that stays under 50 KB. Download it. If the portal also has a minimum, type it in Min KB.
My portal says "file size must be at least 20 KB". What do I do?
Type 20 in Min KB. If the compressed photo comes out smaller, the tool adds invisible padding inside the JPEG so the file is at least 20 KB, without changing the picture. Most tools cannot do this.
Is 1 KB 1000 or 1024 bytes?
Portals differ. To be safe, we keep the file under max KB × 1000 bytes and above min KB × 1024 bytes, so it passes either way.
Will compressing reduce quality?
Only as much as needed. The tool binary-searches the JPEG quality to the highest value that fits your limit, and only reduces pixel size if quality alone is not enough.
Are my photos uploaded anywhere?
No. The photo is processed by your browser on your phone or computer. Nothing is sent to a server, which is why it is safe for ID photos and signatures.
Does it work on mobile?
Yes. It works in Chrome, Safari and Firefox on Android and iPhone, including iPhone HEIC photos.