Long-time Arc user here. I tried Dia when it launched and honestly, it wasn’t even close to replacing Arc for me.
I tried again a few months later. Same conclusion. Too many of the things that made Arc great were still missing.
I checked it out again recently and was pretty surprised by how much has changed. Most of what kept me on Arc is now there:
- Spaces / Profiles
- Vertical tabs + sidebar
- Pinned tabs & Favorites
- Tab Groups
- Split View
- Automatic Tab Cleanup
- Keyboard shortcuts
- Chrome extensions
- And obviously, Dia’s AI stuff
Also worth mentioning: you can now import your Arc setup directly into Dia, which made testing it properly without rebuilding my whole setup much less annoying.
I’m a pretty hardcore Arc user, so I genuinely didn’t expect to say this, but I’ve now switched and don’t really feel like I’m missing my Arc workflow anymore.
There are basically two small things left for me:
- Auto Tidy Tabs : automatically organizing open tabs into relevant groups. Honestly, this is more of a nice-to-have. It was cool in Arc, but I can definitely live without it.
- Nested dropdown folders : this is probably the only thing I actually miss. Being able to put dropdown folders inside other dropdown folders was really useful for more complex Spaces.
Although I’m starting to wonder if the lack of nested folders is intentional… maybe Dia is just forcing us to stop nesting 25 folders inside 25 other folders and finally clean up our mess 😂
Other than that, I genuinely don’t feel like I’m missing much anymore.
If, like me, you tested Dia months ago and thought “yeah, no way this replaces Arc” — just FYI, the Dia of today is very different from the one we originally tried.
Thought this was worth sharing here because I imagine quite a few of us tried it once and never looked at it again.
Curious what features you guys are still missing from Arc.