Side by side
gh-ost vs pg-schema-diff
Both stand on database migration tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMac
Visit gh-ost Free plan Self-hosted
Choose pg-schema-diff if you need a free, self-hosted way to compare Postgres schemas and create SQL migration plans. Look elsewhere if you need Postgres 13 or earlier, broader type support, or stateful online migration techniques such as shadow tables.
Visit pg-schema-diffThe facts
| gh-ost | pg-schema-diff | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac | Self-hosted |
| Lowest paid plan | Not published | Not published |
| Plans published | None | None |
| Maker | Not published | Not published |
| Website | github.com | github.com |
| On database migration tools | #29 of 32 | #25 of 32 |
gh-ost: what it does well
pg-schema-diff: what it does well
- Free and self-hosted.
- Generates SQL migrations from schema comparisons.
- Supports declarative target schemas in plain DDL.
- Uses native online operations where possible.
- Validates plans against a temporary database.
What to know first
- Postgres 13 and earlier are unsupported.
- Only enum types are supported.
- Some migrations may require downtime.
- Shadow-table migration techniques are not supported.
Alternatives to gh-ost Alternatives to pg-schema-diff The whole list