Shrink a photo until it fits a kilobyte limit you set
Compress a JPG, PNG or WebP down to a kilobyte limit you set, with presets for 20, 50, 100, 200 and 500 KB and a before-and-after slider.
Compress Image workspace
Drop files here or browse files
Drop a file here or browse to start.
- Aim at an exact kilobyte limit
- Split slider against the original
- Presets for 20, 50, 100 KB
- Thirty photos in one queue
EditPDFKit repeatedly re-encodes your image at lower quality, and then at lower resolution if needed, until the result lands under the kilobyte target you entered, all inside the browser tab.
6 Precision Compression Superpowers (Exact KB Limits • Zero Quality Loss)
Dial in the exact file size required by government, job, and exam portals without blurring faces or text.
Other compressors give you arbitrary percentage sliders that leave you guessing. EditPDFKit's binary solver hits exact 20KB, 50KB, 100KB, or 200KB limits on the first try.
1. Exact Target KB Solver (20KB, 50KB, 100KB)
Type your exact limit (e.g. 50 KB for ID photos or 20 KB for signatures) and our binary search algorithm finds the maximum quality that stays under the limit.
2. Interactive Split Compare Slider
Slide back and forth across your photo to compare the original vs. compressed result at 100% zoom before downloading.
3. Batch Image Compression
Compress up to 30 images simultaneously. Set target file sizes globally or tweak individual photos in the batch.
4. Multi-Format & HEIC Support
Compress standard JPG, JPEG, PNG, and modern WebP formats, as well as iPhone camera HEIC/HEIF files without conversion software.
5. Dual Download: Individual or All as ZIP
Download compressed files one by one with their updated KB weights, or bundle the entire batch into a clean ZIP archive.
6. 100% Private In-Browser Optimization
Photos are compressed inside browser memory using HTML5 Canvas & WebAssembly. Zero bytes are uploaded to remote servers.
Built and maintained by Akash Kore · About
How to Compress Images to Exact 20KB, 50KB or 100KB Targets
Simple 4-step walkthrough for fast, secure processing
Drop your photos in
Up to thirty at once. Each one is decoded in the tab and the first appears on the canvas.
Pick a mode on the right
Exact KB Limit for a form, Smart Auto for a quick sensible result, or Manual to set format, quality and scale yourself.
Set the target or the profile
Use a preset chip or type your own kilobyte figure, then wait for the Optimized Size card to settle.
Check the slider, then save
Drag the split slider across the preview to inspect the cost, then press Save Image, or Save All for the whole queue.
EditPDFKit vs. Cloud Image Compressors (TinyPNG & Compressor.io)
Why thousands of privacy-conscious users choose EditPDFKit over cloud converters
| Feature | EditPDFKit (editpdfkit.com) | Cloud Compressors (TinyPNG, Compressor.io) |
|---|---|---|
| Where Files Are Processed | Directly on Your Device (Zero Uploads) | Uploaded to Remote Company Servers |
| Privacy & Safety | Zero Uploads • Files Never Leave Your Device | Files Uploaded and Retained on Remote Company Servers |
| Exact KB Target Sizing (20KB, 50KB, 100KB) | Direct target-size solver hits exact KB limits for passport, visa & SSC/UPSC exam uploads | Rigid percentage slider only; requires tedious trial, error, and re-uploads |
| Split Before/After Comparison | Interactive dual-pane visual inspection slider to verify face clarity before saving | Blind compression; must download file and inspect in external viewer |
| Biometric & ID Photo Privacy | 100% in-browser WebAssembly processing; sensitive personal photos never touch cloud servers | Uploads private passports, IDs, and signatures to third-party web servers |
| Batch Processing & File Size Limits | Batch compress multiple images simultaneously with one-click ZIP download and zero file size caps | Free tiers of cloud image compressors commonly cap upload size or daily conversions; check their pricing pages for current limits |
| Built-in Privacy Vault | Saved Privately on Your Device (View or delete anytime) | Saved on Cloud Servers (Cannot verify if or when deleted) |
| Daily Usage Limits | 100% Unlimited & Free Forever | Free tiers commonly cap daily files; check their pricing pages |
| File Size Limits | No Limits (Process files of any size) | Free tiers commonly cap upload size; check their pricing pages |
| Works Without Internet | Yes • 100% Offline (Works without Wi-Fi) | No • Fails without constant internet connection |
| Account & Sign In | No Signup • No Login • Zero Email Required | Commonly requires an account or email to use fully |
| Watermarks on Your Files | 100% Clean • No Watermarks Ever | Free tiers commonly add a watermark or charge to remove it; check their pricing pages |
How Compress Image Works: Keep Your Files Safe & Private
See step-by-step how your files are processed. Everything happens right inside your browser — your files are never uploaded to the internet or shared with anyone.
1. Open on Your Device
When you pick a file, your browser opens it directly on your computer or phone. Your document stays on your device and is never uploaded anywhere.
2. Process in Your Browser
Your device does all the work right inside your browser. Because there are no server queues or waiting lines, your files are processed instantly.
3. Save in Private Vault
When you save your work, your file is stored securely inside your browser's private vault on your device. You can view or reopen it anytime, even without internet.
4. Download, Reuse, or Delete
Download your finished file, send it directly to another tool without re-uploading, or click 'Clear Vault' to permanently erase your files anytime with one click.
How You Can Prove Your Files Never Leave Your Device
Open this tool, turn off your Wi-Fi or turn on Airplane Mode, and drop your file. It will still edit, convert, or compress and let you download the result! This proves the tool works completely offline without sending anything to any server.
Press F12 on your keyboard (or right-click anywhere and choose "Inspect"), click on the Network tab, and process your file. You will see 0 bytes of your file sent over the web — absolute proof of 100% privacy.
Image Compression Settings, Exact KB Modes & Device Specs
Key features, device compatibility, and supported file types
Runs Directly on Your Device
Processed by your browser with zero waiting or upload lag
100% Private (0 Files Uploaded)
Safe for bank statements, IDs, tax forms, and confidential files
100% Watermark-Free
Clean original documents ready for official submissions
.jpg, .jpeg, .png, .webp, .gif, .bmp
Drag & drop or paste directly from clipboard (Ctrl+V)
100% Free With No Limits
No account needed, no daily limits, no paywalls
Works on All Phones & Computers
iPhone, Android, Windows PC, Mac, iPad, and Chromebook
Need to Hit an Exact File Size Upload Limit?
Online job boards, immigration visa portals, universities, and court e-filing systems enforce strict KB ceilings. Select a calibrated target size solver below to compress without losing readability.
Online Signatures & ID
Preserves sharp pen strokes and contrast for official uploads.
Passport & Visa Photos
Facial clarity preserved for US Visa, Schengen, and passport forms.
Govt Portals & ID Cards
High clarity for driver licenses, passports, and identity proofs.
Exam Form Photos & Resumes
Enough headroom to keep a face clean at portal dimensions.
Interactive Split Slider
Dial in any custom KB limit with live before-and-after preview.
Looking for a Free Alternative to Popular Cloud Tools?
Unlike cloud-based services that upload your files to remote servers or enforce hourly limits, EditPDFKit runs 100% in your browser.
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Tap a star to rate your experience. No account or email needed.
Frequently Asked Questions About Compressing Images to Exact KB
Everything you need to know about Compress Image on editpdfkit.com
How to get the most out of Compress Image
Written walkthroughs for the jobs people actually bring to this tool.
- Image Compression & Quality3 min read
How to Reduce Image Quality and File Size Online (Free Image Quality Reducer)
Whether you need to upload a smaller photo to a website, reduce image quality to meet strict KB limits, or optimize images for faster web performance, EditPDFKit's Image Quality Reducer allows you to visually adjust quality with real-time before/after comparison.
Read the guide - Exam & Govt Portals4 min read
How to Compress a Passport Photo and Signature for Online Application Portals
Filling in an exam, recruitment, or visa application form? Application servers reject uploads outright if the passport photo falls outside roughly 20KB-50KB at 3.5cm x 4.5cm, or the scanned signature outside roughly 10KB-20KB at 4.0cm x 2.0cm. Here is how to crop and compress both files to the exact byte count in seconds on a phone or a PC, without them turning blurry.
Read the guide - Image Compression3 min read
How to Compress Images to 200KB (or Any Target Size) Without Quality Loss
Many government job portals, university admissions, and online forms strictly enforce file size limits like 200KB, 100KB, or 50KB. With EditPDFKit's client-side solver, you can dial in an exact KB target and let our smart algorithm find the optimal compression ratio with zero server uploads.
Read the guide