Smart Compress

Reduce file size while optimizing for maximal quality. Compress JPG, PNG, and PDF instantly.

or drop files anywhere on screen

How to Compress Photos to an Exact File Size

The ultimate, privacy-first tool to reduce image file sizes for US Visas, EU Passports, University applications, and web performance.

How to Compress Your Image to a Target KB Limit:

  1. Upload Your Image: Drag and drop your JPEG or PNG photo into the browser window.
  2. Set Your Target Size: Enter your exact required file limit (e.g., 50 KB or 240 KB) in the target box.
  3. Download Instantly: Our Binary Search engine optimizes the visual quality instantly. Click download to save your perfectly sized, private file.

Stop Guessing with "Quality" Sliders

Most online image compressors only offer a basic percentage slider. If an immigration or employment portal requires your photo to be exactly under a specific limit, a slider leaves you guessing. Finding a way to compress JPEG to 100kb online free shouldn't require you to repeatedly compress, download, and check the file size.

GASO Studio uses a smart Binary Search Optimization Engine. You simply type your required limit into the target box. Our engine mathematically tests dozens of compression ratios in the background instantly, delivering the highest possible visual quality that stays perfectly under your limit.

Compressing for US Visas & The Green Card Lottery

The US Department of State has incredibly strict digital file rules for the Diversity Visa (Green Card Lottery), DS-160, and US Passport renewals. Your digital photo must be strictly under 240 KB (240,000 bytes).

If you need to compress image to 240kb or resize photo for DS-160 online, you can safely type "239" into our target box. The tool will perfectly compress your high-resolution portrait into a web-ready JPEG without sacrificing the clarity required by facial recognition software at the consulate. If your photo needs to be perfectly square before compressing, use our Biometric Crop tool to align your face to government standards first.

Schengen Visas, UK Passports, and University Portals

Whether you are applying for a Schengen Visa for Europe, a UK Passport, or submitting documents to global university portals like the Common App or UCAS, you will frequently need to reduce image size to 50kb or 100kb.

ID Photos & Scanned Documents

  • ID Photos: Easily shrink large iPhone or Android portraits down to 50 KB for application forms.
  • Scanned Documents: Compress photos of your ID, driver's license, or signature to meet strict 20 KB to 100 KB thresholds.

100% Private: Your Documents Never Leave Your Device

Uploading your official passport, driver's license, or personal portraits to a random server on the internet is a massive privacy and identity theft risk.

We built this tool using WebAssembly (WASM). When you drop a photo into GASO Studio, your own computer's CPU handles the compression locally inside your web browser. Your sensitive documents are never uploaded to a cloud server, guaranteeing 100% offline privacy.