Image Compressor to Target Size
Free online image compressor to target size. Compress JPG, PNG & WebP to 20 KB, 30 KB, 50 KB, 100 KB or custom size in your browser without losing aspect ratio.
100% Client-Side Privacy Guarantee
All compression, byte calculations, and rendering happen locally in your web browser. Your photos, certificates, and signatures are never transmitted to any external server.
Kerala PSC Applicant? Need exact 150×200 photo with Name & Date stamp?
Drop your image here, or browse
Supports JPG, PNG, and WebP (Up to 40 MB)
Byte Measurement Convention:ToolLabs measures actual generated file size in binary bytes (1 KB = 1,024 bytes; 1 MB = 1,048,576 bytes). This strict standard guarantees that a "50 KB" export will never exceed 51,200 bytes on server upload forms.
Portal Acceptance Disclaimer: Online portals (such as UPSC, SSC, state PSCs, passport offices, or university admissions) often enforce secondary criteria like specific pixel dimensions (e.g. 150×200), minimum DPI, or specific photo date labels. Always verify the latest official instructions for your application portal before submitting.
How to Use Image Compressor to Target Size
Navigate to the Image Compressor to Target Size tool on toollabs.in.
Upload your image or drag and drop it into the processing area.
The tool processes your image using the HTML5 Canvas API — entirely in your browser.
Download the processed image in your preferred format. No files are uploaded to any server.
Why Use Image Compressor to Target Size?
Image Compressor to Target Size on toollabs.in processes your data directly in your browser using client-side Web APIs. Your files, documents, and inputs never leave your device.
Whether you are preparing application photos, compressing documents for portal upload limits, or optimizing digital assets, Image Compressor to Target Size provides an accurate, zero-cost utility with no signup or watermark.
Built with modern web standards and responsive layouts, Image Compressor to Target Size runs smoothly across desktop and mobile devices without requiring extra plugins or software installation.
100% Free
No subscriptions, no paywalls, no hidden costs
Privacy First
All processing happens in your browser
Lightning Fast
No server latency, instant results
No Signup
Start using immediately, no account needed
Frequently Asked Questions
How does the image compressor hit an exact target size (e.g. 50 KB or 100 KB)?▼
The tool runs a fast binary search on image quality directly inside your browser. It renders test iterations to find the highest possible visual quality where the final binary blob measures strictly less than or equal to your specified target bytes.
Which KB convention does this compressor use?▼
We use the standard binary convention: 1 KB = 1,024 bytes (KiB) and 1 MB = 1,048,576 bytes. This matches the byte counting rules used by online application portals and web servers, ensuring your file won't be rejected for being slightly over the limit.
Does the tool stretch or distort my image?▼
No. The compressor strictly preserves original aspect ratio at all times. Dimensions are never altered by default; dimension downscaling is strictly opt-in if quality compression alone cannot fit your target size.
What happens to transparent PNG images when converted to JPG?▼
JPG format does not support transparency. If you upload a transparent PNG or WebP and choose JPG output, transparent regions are filled with a clean white background. To preserve transparent layers, select WebP as your output format.
Are my photos uploaded to any server?▼
No. All compression, preview generation, and downloads execute 100% locally in your browser using the HTML5 Canvas API. Your files never touch our servers.
What if my target size is too small to reach?▼
If an image cannot reach your target size even at minimum quality, the tool clearly alerts you and will not falsely claim success. It offers practical fixes: enable the 'Allow dimension downscaling' option, choose WebP output, or select a slightly larger target.
How is this different from the Kerala PSC Resizer?▼
Our general Image Compressor to Target Size is designed for any custom KB/MB limit or general portal requirements. If you are specifically preparing an application for Kerala PSC Thulasi One Time Registration (OTR), use our dedicated Kerala PSC Photo & Signature Resizer (/tools/kerala-psc-photo-signature-resizer), which enforces the exact 150x200 and 150x100 templates with candidate name and date stamping.
Use Cases
Online Job & Exam Portals
Compress candidate photos and identity documents to meet strict 20 KB, 50 KB, or 100 KB upload limits on UPSC, SSC, state PSC, and banking exams.
Passport & Visa Applications
Downscale scanned photos to fit embassy and consular portal file size caps without pixel distortion.
Web & Email Optimization
Compress product photos and banner graphics to reduce page weight and load times without server processing.
Examples
Compress to 50 KB
Input:
2.4 MB smartphone selfie photo
Output:
48.2 KB JPG, retaining 100% original dimensions
Signature to 20 KB
Input:
320 KB scanned signature on paper
Output:
18.6 KB JPG with crisp lines on clean background
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