📂 Batch Upload Rule
For multi-file uploads, all files in the same batch should use the same source type (for example all JPG or all MP3).
Quick rules and tips to get the best results.
For multi-file uploads, all files in the same batch should use the same source type (for example all JPG or all MP3).
Set your preferred output quality to balance file size and clarity. Compression behavior is tailored to each file format.
Each conversion request supports up to 200 MB total. Each user can upload a total of 500 MB per hour.
Completed jobs are saved on this device for up to 1 hour, unless you remove them from the list.
QualityConverter helps you convert image, audio, video, and document files in one workflow without switching tools. Results depend on your output format and quality setting. Higher quality usually preserves more detail but creates larger files, while lower quality reduces size with some loss. Choosing settings based on your final use case improves both output quality and file size.
Choose JPG or WebP for web images, PNG for graphics needing sharp edges or transparency, PDF for consistent document sharing, MP3 for compact audio, and MP4 for broad video playback support across devices and browsers. For video to audio conversion, extract MP3 from MP4, MOV, or AVI when you only need sound.
For lossy formats, start around 80 to 90% and test on your actual destination, such as mobile, desktop, or print. Increase quality when text or edges need to stay crisp, and lower it when smaller files matter more.
Compression can reduce file size significantly, but gains vary by source file and target format. Files already compressed may shrink less, while uncompressed sources often show larger reductions when converted to efficient output formats.
Document conversions aim for practical compatibility, but page flow, fonts, and rendering behavior can affect final layout. If consistency is critical, review spacing and text wrapping after conversion before sharing or printing.