Opifex Labs

Built to last.

A workshop for dependable, carefully-made software. One house, many works — each one struck with the same mark.

Two products shipped·Both run on your own machine·7-day refund

The hallmarkopifex · Latin, maker of works
THE PUNCH THE STRUCK BORDER THE COUNTERSUNK O
Struck on every product the house ships.

The register

Two works, both shipped.

Not a roadmap. Both are on sale today, licensed per product, and both do their work on the buyer's own machine.

01 — AVAILABLE NOW

AuditMitra

GST audit tooling: the raw returns a taxpayer already filed, compiled into audit-ready Excel workpapers — for every taxpayer on the list, in parallel.

For
GST officers & tax professionals
Reads
GSTR-1 · 2A · 3B · 9 · 9C · DRC-03 · 26AS
Gives
One consolidated workbook per taxpayer, supplier-wise
Runs
Windows 10/11, 64-bit — offline; the data never leaves the PC

₹24,000 ₹16,000/year

Explore AuditMitra →

an Opifex product · 14-day free trial

02 — JUST LAUNCHED

LendaarMitra

Rule 37 and the 180-day rule, worked out from the creditor ledger a client already keeps — every payment matched to the invoice it settled.

For
Chartered accountants & tax practitioners
Reads
The client's creditor ledger, out of Tally or their ERP
Gives
ITC to be reversed, plus interest u/s 50, as a client-ready workbook
Runs
Windows 10/11, 64-bit — offline; the client's books stay in the office

₹15,000/year

Explore LendaarMitra →

an Opifex product · 14-day free trial

03 — ON THE BENCH

More wares, in the making

New products are taking shape — in finance, productivity, and beyond. Different problems, the same standard of craft.

The mark

Every work carries the hallmark.

A hallmark is struck by the maker who stands behind the piece. Ours goes on software — one house, one standard, whoever the tool is for.

I

Made deliberately

No bloat, no dark patterns. Each tool does its job well and gets out of your way.

II

Dependable

Software that behaves like an instrument — predictable, precise, and quietly powerful.

III

Yours to keep

Fair pricing, clear terms, and a 7-day refund. If it isn't right for you, you're covered.

Simple, per-product pricing.

₹15,000–₹16,000 a year, in rupees, with a 7-day full refund. No bundles, no upsells.