FastDL is one of the better-known Instagram downloaders, and people often ask how ours compares. This is Rajiv from InstagramFetch, so I'm biased. I'll stick to facts.
Both work in a browser with a pasted link. Neither should need your Instagram password for public posts.
For FastDL, the table says "check their site" wherever I'd otherwise be guessing at features or limits that may have changed.
Comparison
Criteria
InstagramFetch
FastDL
Works in browser
Yes
Yes
Instagram login required
No
Generally no, check their site
Public posts only
Yes
Check their site
Reels / videos
Yes
Yes
Photos and carousels
Yes
Check their site
Stories
Yes (public)
Check their site
Audio / MP3
Yes
Check their site
Profile pictures
Yes
Check their site
Watermark added
No
Check their site
Upscaling
No
Check their site
Price
Free
Check their site
When to pick InstagramFetch
You want MP3 from Reels and full carousel downloads in the same tool, plus clear guides for iPhone, Android and PC.
When FastDL might suit you
It's already bookmarked and handles your links fine.