this post was submitted on 05 Sep 2025
14 points (88.9% liked)

Ask Lemmy

34549 readers
1928 users here now

A Fediverse community for open-ended, thought provoking questions


Rules: (interactive)


1) Be nice and; have funDoxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them


2) All posts must end with a '?'This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?


3) No spamPlease do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.


4) NSFW is okay, within reasonJust remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com. NSFW comments should be restricted to posts tagged [NSFW].


5) This is not a support community.
It is not a place for 'how do I?', type questions. If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.


6) No US Politics.
Please don't post about current US Politics. If you need to do this, try !politicaldiscussion@lemmy.world or !askusa@discuss.online


Reminder: The terms of service apply here too.

Partnered Communities:

Tech Support

No Stupid Questions

You Should Know

Reddit

Jokes

Ask Ouija


Logo design credit goes to: tubbadu


founded 2 years ago
MODERATORS
 

As per the title.

If I was running a Vanilla forum and wanted to migrate over to a new lemmy instance, e.g. forum.com to lemmy.forum.com Could I migrate the entire forum over while keeping the same categories/sub categories as communities I guess, and bringing all of the old threads with them? If it is possible, would it be difficult?

top 12 comments
sorted by: hot top controversial new old
[–] bjoern_tantau@swg-empire.de 11 points 1 week ago (1 children)

Depending on the software used NodeBB might be easier to migrate to than Lemmy. As far as I know it also has ActivityPub support.

Also, Lemmy does not have subcategories. Every community is on the same hierarchy.

You might also want to look at PieFed. It's a bit lighter than Lemmy.

[–] Babalugats@lemmy.world 1 points 1 week ago (1 children)

Thanks. Does PieFed have subcategories?

[–] bjoern_tantau@swg-empire.de 2 points 1 week ago (1 children)

Don't know. Probably not. It works more or less the same as Lemmy.

[–] Babalugats@lemmy.world 1 points 1 week ago (1 children)
[–] SqueakySpider@lemmy.dbzer0.com 2 points 1 week ago (2 children)

I'm sorry cause I don't have a source, but by another Lemmy comment anecdote I remember reading PieFed does have subcategories. I.e. /art/paintings . Worth checking in to!

[–] Babalugats@lemmy.world 1 points 1 week ago

Yes, it seems it does.. and they look good. 🙂

Example here - https://piefed.social/topics

I got it from here - Scroll down to differences between Lemmy and PieFed.

[–] Babalugats@lemmy.world 1 points 1 week ago

Thanks, will look for it. Hopefully can find some info. 🤞

[–] A_Union_of_Kobolds@lemmy.world 7 points 1 week ago (1 children)

Not that I know of. Thats the case most times a community has to move, you more or less start from scratch.

You can set up a bot to periodically post links to old threads, articles, etc but that's about it afaik

[–] NeatNit@discuss.tchncs.de 4 points 1 week ago

Seconding the suggestion to start fresh. Make the old forum an archive, still readable but impossible to add or edit. If necessary, migrate it to a more lightweight system, perhaps one designed specifically for preserving old forum content (I don't know if there is one, just spitballing here).

You really should give some thought to whether Lemmy is a good format for your community. Forums are very different from Lemmy.

[–] ProdigalFrog@slrpnk.net 5 points 1 week ago* (last edited 1 week ago)

Seconding the piefed recommendation. It's much lighter to host than Lemmy, and has some nice user facing features that Lemmy lacks, which you can read more about here (scroll down to comments):

https://slrpnk.net/post/24141955/16757434

[–] turkalino@lemmy.yachts 3 points 1 week ago (1 children)

If you don’t care about the migrated content being federated, then you could write a script which copies everything into the database of your Lemmy instance

If you do care, then you would have to go with the other person’s suggestion of having a bot post the migrated content periodically

[–] markz@suppo.fi 2 points 1 week ago

If the forum users are local, there's no issue federating them. That is, if the db was migrated in the first place.