Weight & Mass Converter Online Free
Convert between kilograms, grams, pounds, ounces, and tonnes instantly. By PixyTool.
Weight & Mass Converter
Convert kg, grams, pounds (lbs), ounces, and tonnes with precision.
Squeeze Megabytes into Kilobytes with Zero Loss
Engineered with modern WebAssembly codecs to compress high-resolution photos directly in browser memory. Keep crisp edges, vibrant colors, and transparent backgrounds while drastically reducing file sizes.
4.8 MB Photo → 94 KB Output
Reduce file size by up to 98% while preserving clarity for job applications and exam portals.
100% Private In-Browser Execution
Your photos never leave your device. Zero server uploads, zero data logs, 100% confidential.
Custom Target Presets
Exact file size targeting for 100KB, 50KB, 20KB or precision manual quality sliders.
How PixyTool Weight & Mass Converter Works in 4 Simple Steps
Illustrated step-by-step workflow. Zero server delays, zero data leaks, 100% private in your browser.
Why PixyTool Is 10x Safer & Faster
See the difference between old cloud upload converters and PixyTool's zero-upload client architecture.
Traditional Cloud Converters
Remote server processing
- Uploads private documents, IDs, and signatures to third-party servers.
- Slow upload & download queues on mobile networks.
- Strict daily file quotas and aggressive subscription paywalls.
- Risk of permanent cloud storage retention or security leaks.
PixyTool In-Browser EngineRecommended
100% Client-side local execution
- Zero Server Uploads: Files never leave your browser memory.
- Instant Speed: Zero network latency, instant conversions.
- Unlimited & Free: Process unlimited files without signup or limits.
- Mobile-Optimized: Smooth touch experience across iOS & Android.
Supported Media Formats & Standards
PixyTool processes all major industry formats natively inside browser memory without sending bytes to external clouds.
Google WebP
The modern gold standard for web performance
- Full Alpha Transparency
- Lossless & Lossy Modes
- Fast Web Rendering
JPEG / JPG
Universal standard supported on 100% of devices
- 24-Bit TrueColor Support
- Strict Portal Compliant
- Zero Compatibility Issues
Portable Network Graphics
Crystal-clear lossless sharpness with alpha transparency
- Transparent Backgrounds
- Zero Compression Artifacts
- Ultra-Sharp Text Lines
AV1 Image File Format
Next-generation codec with extraordinary compression efficiency
- 10-Bit & 12-Bit HDR Color
- Deep Neural Compression
- Modern Browser Native
Portable Document Format
Vector document container with strict layout preservation
- Multi-Page Organization
- Digital Watermarks & Signatures
- Archival Compliance
Scalable Vector Graphics
Infinite resolution vector mathematics with 0 pixelation
- Infinite Scalability
- Clean XML Code Structure
- Lightweight Byte Size
Simple Mass & Weight Conversion for Everyday Use
Convert recipe ingredient quantities, luggage weight limits, body weight, and shipping parcel weights between metric and imperial units.
Engineered for Quality & Performance
Why PixyTool Is The First Choice For Creators
Engineered specifically to solve strict upload constraints for government job forms, exam portals, web developers, and professional photographers.
Exact Target Size (100KB, 50KB, 20KB & More)
Never guess quality settings again. Select your required size (like 100KB or 50KB) and our tool automatically tunes the compression to make sure your photo fits safely under that limit.
Crystal Clear Quality (No Blurry Images)
Keep your photos sharp and clear. Our smart compressor shrinks the file size while preserving faces, document text, and signatures so they look just as good as the original.
Compress Multiple Photos & 1-Click ZIP
Compress dozens of photos at once without slowdowns. Download them individually or save everything together in one neat ZIP file with a single click.
Side-by-Side Before & After Comparison
Check the quality before downloading. Use the interactive split slider to compare your original photo and the compressed version side by side.
Convert Between Formats (WebP, JPG, PNG)
Easily convert photos between JPG, PNG, and modern WebP formats. Keep transparent backgrounds for logos or optimize photos for fast web sharing.
Instant Speed & Works 100% Offline
Everything happens directly on your device with no waiting for uploads. Once the website is opened, you can even compress images without an internet connection.
Exact Target Size (100KB, 50KB, 20KB & More)
Never guess quality settings again. Select your required size (like 100KB or 50KB) and our tool automatically tunes the compression to make sure your photo fits safely under that limit.
Crystal Clear Quality (No Blurry Images)
Keep your photos sharp and clear. Our smart compressor shrinks the file size while preserving faces, document text, and signatures so they look just as good as the original.
Compress Multiple Photos & 1-Click ZIP
Compress dozens of photos at once without slowdowns. Download them individually or save everything together in one neat ZIP file with a single click.
Side-by-Side Before & After Comparison
Check the quality before downloading. Use the interactive split slider to compare your original photo and the compressed version side by side.
Convert Between Formats (WebP, JPG, PNG)
Easily convert photos between JPG, PNG, and modern WebP formats. Keep transparent backgrounds for logos or optimize photos for fast web sharing.
Instant Speed & Works 100% Offline
Everything happens directly on your device with no waiting for uploads. Once the website is opened, you can even compress images without an internet connection.
Your Personal Photos & Documents Never Leave Your Device
Most online compressor websites upload your sensitive ID cards, signatures, and private photos to unknown remote servers. PixyTool works completely on your phone or computer. Nothing is ever uploaded, stored, or viewed by anyone.
How to Compress Images to Exact Size (Under 100KB / 50KB)
Follow these quick steps to shrink your photos to exact target sizes without sacrificing visual clarity.
Upload Your Image
Drag and drop your photos into the upload box or click to select files from your computer, phone, or tablet. You can upload single photos or dozens in bulk.
Select Your Target Size (e.g. 100KB or 50KB)
Choose one of our quick target size presets (100KB, 50KB, 20KB) or enter any custom size in KB or MB. Alternatively, switch to manual mode to adjust the quality percentage slider.
Inspect & Compare Visual Quality
Click the "Compare" button on any image card to open our interactive split before/after viewer. Verify sharpness, color accuracy, and file size savings.
Download Compressed Image or ZIP
Download individual files with a single click or hit "Download All (ZIP)" to save all compressed images packaged together in seconds.
Upload Your Image
Drag and drop your photos into the upload box or click to select files from your computer, phone, or tablet. You can upload single photos or dozens in bulk.
Select Your Target Size (e.g. 100KB or 50KB)
Choose one of our quick target size presets (100KB, 50KB, 20KB) or enter any custom size in KB or MB. Alternatively, switch to manual mode to adjust the quality percentage slider.
Inspect & Compare Visual Quality
Click the "Compare" button on any image card to open our interactive split before/after viewer. Verify sharpness, color accuracy, and file size savings.
Download Compressed Image or ZIP
Download individual files with a single click or hit "Download All (ZIP)" to save all compressed images packaged together in seconds.
Frequently Asked Questions
Everything you need to know about our image compression technology and file size standards.
Explore PixyTool Free Online Tools Directory
Quickly switch between PDF utilities, image compressors, developer tools, video processing, text tools, and calculators. All tools run 100% locally in your browser for unmatched privacy and speed.
Combine multiple PDF files into a single unified document in seconds.
Extract specific page ranges or separate all pages into individual files.
Reduce PDF file size while keeping text and illustrations sharp and clear.
Convert JPG, PNG, and WebP images into high-quality A4 PDF documents.
Compress photos to custom exact sizes (KB) or percentage with zero quality loss.
Instantly resize and compress images under 100KB for exam and job forms.
Get photos under 50KB for UPSC, SSC, state PSC, and government portals.
Compress signatures and small ID photos under 20KB with maximum clarity.
Format, beautify, validate, and minify JSON data with real-time syntax checking.
Convert plain text into Base64 strings and decode Base64 back to original text.
Decode JSON Web Tokens securely without sending sensitive tokens over the network.
Convert Epoch timestamps to human dates (UTC, local) and vice versa with live epoch clock.
Translate video dialogue into 30+ languages with matched voice tone, lip-sync pacing, and background music.
Translate spoken video audio into another language with matched vocal characteristics and timing.
Cut and trim video clips to exact start and end times instantly in browser.
Remove audio track from any video and download a clean silent MP4 file.
Count words, characters, sentences, and estimate reading time instantly.
Convert text to UPPERCASE, lowercase, Title Case, camelCase, and kebab-case.
Compare two texts side-by-side and highlight added, changed, and removed lines.
Convert article titles into clean SEO-friendly URL slugs automatically.
Calculate exact age in years, months, and days from any date of birth.
Calculate percentage, percentage change, and discount amounts instantly.
Add or remove GST/VAT from any price with 5%, 12%, 18%, 28% tax slabs.
Calculate monthly EMI, total interest, and loan repayment breakdown instantly.