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Lossless JPEG Q100 + standard COM segment padding for government & exam portals
Automatic format identification and lossless transcoding across 201+ formats.
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Most email providers limit attachments to 25MB. KaijuConverter helps you compress PDFs, resize images, and convert videos to smaller formats so your attachments always go through.
PDF compression: Reduce PDF size by up to 80% while keeping text sharp.
Image compression: Resize and compress photos for email without visible quality loss.
Video conversion: Convert to MP4 with optimized bitrate for email-sized clips.
KaijuConverter delivers ultra-fast in-memory conversions for everyday tasks. For multi-gigabyte production workloads without browser bandwidth bottlenecks, explore high-throughput desktop suites.
One-time payment with zero recurring commitment: convert files up to 1 GB and 50-file batches for 24 hours.
Convert large videos, PDFs, and lossless audio directly in your browser—100% ad-free with priority queue.
High-throughput cloud pipeline for files up to 1,024 MB, 24-hour encrypted storage, and priority processing.
Convert thousands of camera RAW files (CR3, NEF, ARW) to WebP, AVIF, or TIFF in one pass.
GPU-accelerated RAW development with end-to-end 16-bit ICC color profile management.
Our Optimize Files for Email Attachments workflow curates the most compatible industry-standard formats (such as WEBP/AVIF for web, MP4 H.264 for messaging, and PDF/DOCX for office workflows) so your files open everywhere without errors.
Yes. You can drag and drop up to 10 files at a time into the converter widget, adjust Studio quality or size presets, and download them individually or as a combined ZIP archive.
Yes. You have full control over quality sliders, target byte limits (20 KB, 50 KB, 100 KB), resolution, and DPI so you get the smallest file size with zero visible artifacts.
Yes. All tools and format converters on KaijuConverter are completely free for both personal and business workflows, with no watermarks and automatic 60-minute file deletion.