WebTools Local
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100% In-Browser · Zero Upload

Compress Image to Exact Target File Size

No guessing sliders. Enter your portal's exact KB requirement; we compress under it right in your browser.

Drag & Drop your image here, or browse

Supports JPG, PNG, WebP (Processed 100% client-side)

Target Size:
KB
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Why Use Target-Size Image Compression?

Most online forms, government portals, and visa application websites enforce strict file size ceilings (for instance, "photo must be less than 50KB" or "passport scan under 100KB"). Traditional compressors like TinyPNG offer vague "make it smaller" outputs without letting you declare a ceiling, forcing endless trial and error.

How Our Browser-Local Engine Works

SizeCapped uses an intelligent binary-search compression algorithm running directly in your browser's Canvas API. It computes the exact quality factor and downscale factor needed to hit your target byte limit on the first try. Your confidential photos and documents are never sent over the Internet.

Is my photo uploaded to your server?

No. 100% of the compression computation executes in your device's memory using client-side JavaScript. Disconnect your Wi-Fi and this tool still works.

Will my image lose quality?

Our algorithm selects the highest possible visual fidelity that still satisfies your target file size boundary.

Local Data & Developer Workbench

Convert, format, validate, and diff your CSV, JSON, and YAML data offline. Zero network leaks.

Input Data (CSV or JSON)
Converted Output Ready

Secure Local Data Transformation for Engineers & Analysts

Enterprise compliance policies frequently prohibit uploading customer databases, API keys, or financial CSVs to free online converters. DataForge executes all parsing logic directly on your client machine with Web Workers, providing enterprise-grade security at zero cost.