Shrink thousands of images by 50–80% — no visible quality loss
Compress thousands of images without visible quality loss.
Reduce JPEG, PNG, and WebP file sizes by 50–80%. Perfect for websites, email campaigns, and storage optimization.
Download Free — 30-Day Trial, No Credit CardUsed by web teams and marketers. $129 one-time. No subscription.
Kokeile ilmaiseksi 30 päivää - Luottokorttia ei vaadita
How It Works
Add your images
Drag & drop files or entire folders
Set compression level
Choose quality vs. file size balance — preview before converting
Convert
All outputs ready in minutes
Compression Results by Quality Level
| JPEG Quality | Size Reduction | Visual Difference | Best For |
|---|---|---|---|
| 95% | 20–30% smaller | Imperceptible | Print, archival |
| 92% | 40–50% smaller | Nearly invisible | E-commerce, portfolio |
| 85% | 60–70% smaller | Slight on zoom | Websites, blogs |
| 75% | 70–80% smaller | Noticeable on zoom | Thumbnails, email |
Supported Formats
JPEG Lossy
Adjustable quality from 1–100%. Best for photos.
PNG Lossless
Reduce file size without any quality loss. Best for graphics.
WebP
Modern format with superior compression. Lossy and lossless modes.
PNG compression level
PNG is lossless — you keep every pixel. Contenta lets you pick the compression effort so files shrink as much as the format allows.
Lossless by design
PNG never throws away image data. Higher compression means smaller files with identical pixels.
Choose the effort
Set the PNG compression level from 0 to 9 — maximum effort for the smallest web-ready PNGs.
Batch every PNG
Apply your chosen level to a whole folder of PNGs in one pass, on your desktop.
Before & After
Before Contenta
5 MB product photos. Slow page loads. Emails bouncing from size limits. Online compressors with file limits and privacy concerns.
After Contenta
Drop 10,000 images, set your quality target, get optimized files in minutes. No upload to third-party servers. Your files stay on your computer.
Start Converting Photos Today
Choose the plan that works for you. All plans include every feature.
No subscription trap. Contenta is a one-time purchase — less than 2 months of Lightroom, and it's yours forever.
Frequently Asked Questions
Contenta reads and writes 60+ formats including JPEG, PNG, TIFF, WebP, HEIC, AVIF, BMP, GIF, PDF, and 25+ camera RAW formats (CR2, NEF, ARW, DNG, RAF, and more).
There is no limit. Contenta uses multi-core processing to convert thousands of images in minutes. Users regularly process 10,000+ photos in a single batch.
Yes. Contenta supports 25+ RAW formats from Canon, Nikon, Sony, Fuji, Panasonic, Olympus, and more. Full white balance, denoising, and color adjustment controls are built in.
The 30-day trial includes all features. The first 10 images per batch are processed without watermarks. After that, a small watermark is added. Purchase a license to remove all limitations.
No. Contenta Converter is a one-time purchase. You pay once and own it forever, including all future updates. No monthly or yearly fees.
What Our Users Say
“I have been using Contenta Converter for years and it has saved me countless hours of work. Highly recommended!”
“Simple, fast, and does exactly what it promises. The batch processing is incredibly efficient.”
“Best image converter I have found. The RAW support and metadata handling are top-notch.”
Published by ContentaSoft, Umea, Sweden — developer of Contenta Converter PREMIUM.
Contenta Converter PREMIUM is a desktop application for Windows that batch converts, resizes, renames, watermarks, and processes images in 60+ formats including JPEG, PNG, WebP, HEIC, TIFF, RAW, and PDF.
This software contains no adware, spyware, toolbars, or bundled third-party programs. The installer installs only Contenta Converter PREMIUM.
Conversion, resizing, watermarking and metadata editing run on your computer. The optional AI features (background removal, photo restoration, colorize) send the images you process with them to Google Gemini using your own API key. The software does not collect personal data.
Free 30-day trial with full functionality. After the trial, a license key is required. Lifetime license: $129 (one-time payment, no subscription).
How to Uninstall
Open Windows Settings > Apps > Installed apps, find 'Contenta Converter PREMIUM' in the list, and click Uninstall. You can also run the uninstaller from the installation folder or use Control Panel > Programs and Features.
Download size: ~2 MB (web installer). Additional components are downloaded during installation (~300 MB total).