How to Migrate Away from Heroku

Nothing else in this process matters if the copy step gets skipped, so before touching a single setting in Heroku, get your data out and store it under your own control, a local drive, your own cloud space, anywhere that is not the product you are about to leave. People rushing for the exit routinely omit this, and it is precisely what turns a botched migration from a recoverable annoyance into a permanent loss.

What you can get out of Heroku, and in what format, decides how painful the rest of this is. Export before you cancel anything, access to your own data often ends with the subscription. Check the product's own export or data-download page for the formats it offers, and pull the widest, most open one available rather than a format only it can read.

The useful way to shortlist against Heroku runs backwards from the obvious one: name the single thing you cannot give up before you open any list of rivals, then hold every other hosting & deployment option against that one line. Heroku concentrates on paas and cloud-deployment, so a genuine alternative either serves that same need more precisely or covers ground Heroku leaves open. Research two candidates properly rather than skimming eight, because a shortlist you have actually tested beats a long list you only read about. Our comparison pages cover named hosting & deployment rivals in more detail when you reach that stage.

First attempts at moving data into a hosting & deployment tool almost never land clean, and that is fine as long as you find out on a sample rather than on the full set. Bring a representative handful across, open it, and check the structure held: fields where you expect them, nothing silently truncated or misfiled. A second pass over a small test batch costs minutes; repairing a mapping mistake across the entire collection costs far more.

Assumption is what loses data at this stage, so replace it with checks before Heroku gets shut down: match the numbers between old and new, open the files or records that actually matter to you rather than a random few, and confirm nothing you depend on was dropped quietly along the way. The old account should outlive the migration itself, keep it, even on a reduced plan, until the new tool has proven itself under real work.