AllConvert — Free Online File Converter

什麼是 AllConvert — Free Online File Converter？

AllConvert converts images, documents, spreadsheets, PDFs, subtitles and more — entirely inside your browser. Nothing is ever uploaded to a server, so your files stay completely private. No account, no signup, no usage limits beyond your device's memory. Supports 100+ format pairs: PNG/JPG/WEBP/HEIC/AVIF/ICO/SVG, PDF to PNG/TXT, DOCX, XLSX/CSV/JSON/YAML, SRT/VTT subtitles, ZIP/GZIP and more. Batch-convert multiple files at once and download everything with one click.