Lens, by Aerele

Engineering experience, codified into software.

Years of contributing to Frappe core, packaged into products the wider ecosystem can put to work - built by the same engineers who ship patches upstream.

30+ engineers
600+ Frappe core PRs
Lens now live
Lens
New · live now

See what'll break before your ERPNext upgrade.

Run a deep audit on your custom Frappe app - surface breaking changes, deprecated APIs, and version-incompatible patterns before you ship the upgrade. Built by the team that contributes to Frappe core.

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Migration audit - see exactly what breaks when you move between Frappe / ERPNext versions.
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Code review - deprecated APIs and Frappe-specific issues, ranked by severity.
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Shareable reports - findings your team can ship from, with file/line references.
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Strategy call included - every audit comes with a 30-minute review with a senior Frappe/ERPNext engineer who actually contributes to core.
Start with your free scan

New users get free scan credits - no card required.

lens audit ./my-erpnext-app
scanning 142 files…
● deprecated frappe.db.sql_list() · custom_app/api.py:88
● breaking @frappe.whitelist removed · custom_app/utils.py:34
● breaking renamed: get_value → db.get_value · custom_app/hooks.py:12
● info 9 unused imports · 4 files
3 breaking · 12 warnings · v14 → v15

Lens, by Aerele

Our contributor experience, focused on your code.

Aerele

The team - 30+ engineers with 600+ merged PRs in Frappe, ERPNext, HRMS, and Payments core.

Lens

The product - what we built so the same eyes that review Frappe core can look at your code too.

Every check Lens runs is informed by the work we do every day on the framework itself. When the audit flags a deprecated API, it's because we've watched it deprecate. When it warns about a breaking change, it's because we've reviewed - and often written - the patch upstream.

Why this matters

Built by the team that contributes to the framework you run on.

Lens is the first tool in a small line of products built on top of our work in the Frappe ecosystem. The same engineers who contribute upstream build them - which means they're built right.

More from Aerele

The rest of the toolbox

More tools built from our work in the Frappe ecosystem. Some are live, others are on the way.

Optimus Open source

Flow-aware performance profiler for Frappe and ERPNext. Capture a whole business flow and get a report you can act on.

Learn more
Frappe Claw Coming soon

Build agents and deploy them in your Frappe site to automate business workflows and development activities.

Learn more

Want to know when the next one ships? Get in touch