1. Upload Your Image
Drag and drop any JPG, PNG, WebP, AVIF, GIF, or BMP file into the drop zone, or click to browse your files. Supports images up to 50MB with full EXIF orientation support.
Compress Image to 225KB Online
Free, fast, and completely private. Drop in any JPG, PNG, WebP, or AVIF photo and compress it to exactly 225KB right in your browser — no uploads, no servers, no watermark.
Why Compress to 225KB: Portfolio Thumbnails & Case Study Covers
225KB suits portfolio thumbnails and case-study cover images where you want noticeably more detail than a basic blog graphic, but still need pages to load quickly across a gallery of multiple images.
Real-World Use Cases for 225KB
- Falls just inside the newer Passport Seva digital photograph standard (10–250KB, 630×810px, effective from the 2025–26 MEA update).
- A safe size for scanned OCI and visa-application photographs that mirror passport-photo specifications.
- Common upper range for portfolio thumbnails and case-study cover images where visual quality matters more than absolute minimal size.
Official Portal & Exam Size Guidelines
Published specifications from recruitment and government portals whose accepted range includes 225KB. Always confirm against your specific exam's current notification before submitting.
| Portal / Exam | Document | Accepted Size | Format | Dimensions |
|---|---|---|---|---|
| Passport Seva (Indian Passport, 2026 standard) | Digital Photograph | 10–250 KB | JPEG | 630×810px |
| OCI / Indian visa applications | Photograph (passport-style) | Similar to passport specs | JPEG | 35×45mm equivalent |
| Design portfolios | Case-study cover image | 200–300 KB typical | JPG/WebP | Varies |
Compress to a Specific Size
Choose your exact target file size and compress images with precision. Our intelligent algorithm optimizes quality and dimensions automatically.
How It Works
Four simple steps to compress your images without compromising privacy. All processing happens locally in your browser.
2. Choose Target Size
Select your desired output size from 20KB to 500KB. Our intelligent binary search algorithm automatically adjusts quality and dimensions to reach your target precisely.
3. Compress
Click the Compress button. Our binary search quality optimization finds the best quality setting for your target size in milliseconds, right in your browser. No uploads required.
4. Download
Preview the before and after results, then download your compressed image instantly. Compare file sizes, dimensions, compression percentage, and output format at a glance.
Supported Image Formats
Our compressor works with all major image formats and intelligently selects the best output format for your needs.
JPG / JPEG
The most common photo format. Excellent compression for photographs with rich colors. Our tool optimizes quality settings to reach your target size while preserving visual fidelity.
PNG
Lossless format with full transparency support. Ideal for screenshots, graphics, logos, and images with text. We preserve transparency when compressing PNG files automatically.
WebP
Modern format from Google offering superior compression. WebP typically produces files 25-35% smaller than JPEG at equivalent quality. We auto-convert when your browser supports it.
AVIF
The next-generation format with the best compression ratios. AVIF can reduce file sizes by 50% compared to JPEG. Automatically used for very small target sizes when your browser supports it.
Your Privacy Matters
Unlike most online image compressors, we never upload your images to a server. All compression happens locally in your browser.
Every image you compress using Compress To KB is processed entirely within your web browser using JavaScript and the HTML5 Canvas API. This means your images are never sent over the internet, never stored on any remote server, and cannot be accessed by us or any third party. Compressed images exist only in your browser's memory and are discarded when you close the page.
This makes Compress To KB ideal for compressing sensitive photos, confidential documents, or any image you prefer to keep private. Your data stays on your device, exactly where it belongs. Once the page is loaded, you can even compress images without an internet connection.
Related Guides
Go deeper on formats, privacy and web performance in our blog.
How to Optimize E-Commerce Product Images for Faster Sales
Matching target sizes to thumbnails, main images and zoom views across a catalog.
JPEG vs WebP vs AVIF: Which Format Should You Use in 2026?
A practical comparison of the three formats for compression ratio, browser support and visual quality.
Frequently Asked Questions About the 225KB Tool
Yes. The Passport Seva portal's 2026 digital photo standard accepts JPEG files between 10KB and 250KB at exactly 630×810 pixels, so 225KB fits comfortably inside that window with headroom to spare.
Both. The Ministry of External Affairs' updated standard is strict about pixel dimensions (630×810px) in addition to the file size range, since the photo is validated automatically. Resize to the correct dimensions first, then compress to your target KB.
In late 2025, India moved from the old 2×2 inch (51×51mm) square passport photo format to a new 35×45mm digital standard checked automatically by the Passport Seva portal, with a grace period for old-format photos ending in February 2026.
Requirements vary significantly by country. Many use a similar passport-style photo but with different size ceilings (e.g. China's e-visa photos are capped around 30–80KB). Always check the destination country's specific photo requirements rather than assuming Indian passport rules apply.
1KB equals 1,024 bytes in this tool (and in Windows/macOS), so a file listed as under 225KB is at most 230,400 bytes. If a portal's own size checker uses 1,000 bytes per KB instead, your file will still pass since it's comfortably under either definition.
For most photos, yes — at 225KB you can expect a result that looks excellent, close to visually lossless for most photos. The exact outcome still depends on how detailed and high-resolution your original photo is; a simple, well-lit photo compresses more cleanly than a busy, low-light one.
If your form specifies exact dimensions, match those first — commonly your original dimensions, including the 630×810px passport standard. Our tool not needed unless your original is unusually high-resolution while compressing, so starting with roughly the right dimensions gives the cleanest result.
Yes. Upload your PNG here, select JPG from the Output Format dropdown, and set your target to 225KB — the tool converts and compresses in the same step, which is handy for a passport-style digital photo.
No, and we structurally can't — there's no upload step in this 225KB tool at all. Everything happens client-side via JavaScript and Canvas, so your file never leaves your device.
Yes, one at a time, which lets the tool fully optimize each file for exactly 225KB rather than applying one generic setting across a batch. You can reset and compress another image immediately after downloading.
Your iPhone is likely saving photos as HEIC, which isn't accepted here (we support JPG, PNG, WebP, AVIF, GIF, and BMP for the 225KB target). Switching to Settings → Camera → Formats → "Most Compatible" saves future photos as JPG, which will upload fine.
Popular Compression Targets
Quick links to our most-used target-size compressors.
Compress to 250KB
Popular for e-commerce thumbnail grids and product catalog photos.
Compress to 275KB
Fits marketplace and classifieds listings that need real detail.
Compress to 300KB
Ideal for e-commerce product photos and portfolio images that need good detail.