While converting files may seem like a temporary fix, it can actually be incredibly beneficial. As file types vary in quality and structure, their effects and impressions also change depending on their intended use. Don't worry about which formats are better. Here are 10 formats we've listed for you. With ConvertSea, input is auto-detected, you pick the output, there’s no watermark, and files are auto-deleted within 2 hours.

-----------------------------------------------------------------------------

Image

-----------------------------------------------------------------------------

1) JPG → PNG

Use when: you need transparency or crisp UI assets. Tip: converting won’t recover JPG’s lost detail. Try it: convertsea.com/file/image/jpg-to-png

2) PNG → JPG

Use when: you want smaller photo files for sharing. Tip: keep a master PNG for editing; export JPG for delivery. Try it: convertsea.com/file/image/png-to-jpg

3) PNG → WebP

Use when: you want lighter web images with optional transparency. Tip: check quality around 75–85% before publishing. Try it: convertsea.com/file/image/png-to-webp

4) HEIC → JPG

Use when: you need universal compatibility for iPhone photos. Tip: archive the original HEIC if size/quality matters later. Try it: convertsea.com/file/image/heic-to-jpg

5) SVG → PNG

Use when: you need a raster export for tools that don’t support SVG. Tip: export at the final pixel size to avoid blurring. Try it: convertsea.com/file/image/svg-to-png

-----------------------------------------------------------------------------

Document & Data

-----------------------------------------------------------------------------

6) PDF → DOCX

Use when: you need an editable version of a fixed layout. Tip: for scans, enable OCR; review tables and fonts after export. Try it: convertsea.com/file/document/pdf-to-docx

7) DOCX → PDF

Use when: you want a finalized file for reliable sharing/printing. Tip: embed fonts to preserve the exact look. Try it: convertsea.com/file/document/docx-to-pdf

8) PDF → JPG

Use when: you need image pages for slides, previews, or thumbnails. Tip: pick a DPI that matches the target (e.g., 150–300). Try it: convertsea.com/file/image/pdf-to-jpg

9) CSV → XLSX

Use when: you need formatting, filters, and formulas—not just raw text. Tip: confirm delimiter and UTF-8 encoding for special characters. Try it: convertsea.com/file/document/csv-to-xlsx

-----------------------------------------------------------------------------

Audio & Video

-----------------------------------------------------------------------------

10) MP4 → MP3

Use when: you only need the audio (lectures, podcasts, notes). Tip: voice: 128–192 kbps; music: 256–320 kbps. Try it: convertsea.com/file/audio/mp4-to-mp3

-----------------------------------------------------------------------------

Quick chooser

• Need transparency or UI crispness? PNG / WebP
• Need the smallest photo? JPG
• Need editability? DOCX
• Need print-ready? PDF
• Need only audio? MP3
• Privacy note: No watermark. Files are processed securely and auto-deleted within 2 hours.