Resize Image to 20 KB Online Free
Compress or resize any photo to exactly 20 KB without quality loss where possible. Used for SSC, UPSC, NEET, JEE, GATE, IBPS, SBI, and other government exam portals. All processing happens in your browser.
Online application portals for competitive exams in India impose strict file size limits alongside dimension requirements. A photo that is the right size in pixels but outside the accepted KB range will be rejected at upload. This tool solves both constraints together.
Set your target pixel dimensions (or use an exam preset from the selector below), then let the tool search for the optimum JPEG quality that lands within the 20 KB window. The algorithm does a binary search across quality levels to maximise visual fidelity while staying within the byte budget. For files that are too small even at full quality, a lossless JPEG comment segment brings the file up to the minimum without altering a single pixel.
Exams where a 20 KB photo may be required include SSC Exams (CGL, CHSL, MTS, GD), UPSC Civil Services, NEET UG (NTA), JEE Main (NTA), GATE, PAN Card (NSDL/UTIITSL), IBPS PO and Clerk, SBI PO and Clerk, RRB NTPC (Railways), Indian Passport (Passport Seva), Aadhaar (UIDAI). Use the exam selector below to load the exact pixel and KB requirements for each.
Your photo is processed entirely in the browser. Nothing is uploaded. You can safely process passport-style photos, government ID photographs, and biometric images without sharing them with any third party.
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Unterstützt JPG, PNG, WebP
Einstellungen
Zentrierter Zuschnitt zum Ausfüllen des genauen Rahmens.
Exams that use the 20 KB range
Frequently Asked Questions
How do I resize an image to exactly 20 KB?
Upload your image, enter the required pixel dimensions and set the file size range to 20 KB. The tool uses a binary-search compression algorithm to find the highest JPEG quality that keeps your file within the target range. If the file is too small even at the highest quality, a lossless JPEG comment segment is appended to reach the minimum size.
Why do government exam portals require a minimum file size like 20 KB?
Minimum file sizes ensure the uploaded image contains enough detail for identity verification. A very small file (under 10 KB, for example) can indicate the image was over-compressed or is too low resolution, which may cause rejection during manual review.
Is my photo uploaded to a server when I use this tool?
No. All processing happens locally in your browser using the HTML5 Canvas API. Your photo never leaves your device. This is especially important for sensitive documents like government ID photos and signatures.
Which exams require a 20 KB photo?
Exams that accept photos in the 20 KB range include: SSC, UPSC, NEET, JEE Main, GATE, PAN Card, IBPS, SBI, RRB NTPC, Passport Seva, Aadhaar. Always check the current official notification for the specific cycle you are applying to.
What format should I save the image in?
Most Indian government exam portals require JPEG (also called JPG) format. This tool outputs JPEG only. PNG and WebP files are not accepted by most portals.