Compress Image to 20 KB — Passport & Visa Photos

Reduce a photo to under 20 KB for online passport, visa, and government applications — without uploading sensitive identity photos to any server.

Last updated

Use it right here — already set up for this task

画像圧縮

画像を目標サイズに圧縮

画像をアップロードし、希望の最大ファイルサイズを設定。無料、安全、ブラウザ内で動作。

画像をここにドラッグ&ドロップ

またはクリックして参照(PNG、JPG、WebP — 最大50MB)

共有

画像圧縮について

高度な画像圧縮ツールが、マルチパス適応圧縮で最適なファイルサイズ削減を実現。目標サイズを正確に設定し、画質とサイズの最適なバランスをエンジンが自動で見つけます。

機能:

  • 正確な最大ファイルサイズを設定(MBまたはKB)
  • スマートな画質検索によるマルチパス適応圧縮
  • PNG、JPG、WebP形式のサポート
  • 最大50MBの入力ファイルサイズ制限
  • 完全にブラウザ内で動作 — ファイルはデバイスから離れません
  • 登録不要で完全無料

参考資料・技術仕様

最終更新日: 2026-03-10

Why this matters

Online visa and passport portals routinely cap photo uploads at 20 KB, 30 KB, or 50 KB — a threshold that most smartphone cameras vastly exceed. The compressor binary-searches quality levels until your photo lands under the limit, letting you submit on the first attempt instead of guessing quality settings in another app.

Step by step

  1. 1
    Open the Image Compressor
    Drop in your passport or ID photo (JPG recommended).
  2. 2
    Set the target to 20 KB
    Type "20" and choose "KB".
  3. 3
    Compress
    The tool iterates in-browser to hit the target.
  4. 4
    Check the preview
    The face should still be clear at 20 KB for most modern photos. If it looks too degraded, try a higher-resolution source image.
  5. 5
    Download and submit
    Save the compressed photo and upload it to the application portal.

Frequently asked questions

Why do government portals require photos under 20 KB?

Legacy upload systems with low server storage quotas set these caps years ago. The limits are rarely updated even as camera megapixel counts have increased.

Will the face still be recognizable at 20 KB?

Yes, for a correctly taken passport photo (tight face crop, even lighting, white background). A 1–2 MP crop of a face compresses well at 20 KB because skin and solid backgrounds are highly compressible.

Should I use JPG or PNG for a 20 KB photo?

JPG. PNG at 20 KB would be extremely degraded because PNG is lossless and far less efficient for photos at tiny file sizes.

Is my passport photo uploaded anywhere?

No. Compression runs entirely in your browser. Your photo never leaves your device, which is especially important for identity documents.

What if the portal also requires specific pixel dimensions?

Resize first using the Image Resizer (e.g., 600×600 px), then compress to 20 KB here.

My country's portal asks for under 50 KB or 30 KB — will this work?

Yes. Set the target to whatever value your portal specifies — 30, 50, or 100 KB.

Try Image Compressor now
Free, private, no signup. Runs in your browser.
Open Image Compressor

Further reading

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