Live tool:
Variative
ID EN
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Automate manual work across operations & finance.

Built with LLMs, data pipelines or plain code: fast, cheap, accurate.

Let’s Talk See Case Studies
  • ERP migration live since January 2026, 4 years of history
  • Bupot parser: 12 fields per PDF, run cost Rp 0

Case Studies & Interactive Simulators

Select a project and click the table tabs to compare before and after automation.

Tax Withholding PDF Extraction & Duplicate Checker

Problem
Opening hundreds of Coretax PDFs one by one to copy tax IDs, base amounts, and PPh into Excel.
Approach
Direct browser parser (zero AI token cost) since Coretax PDFs follow a fixed text layout.
Outcome
12 fields export straight to Excel (.xlsx), filenames standardize, and duplicates or revisions get flagged.
Output
12 fields -> .xlsx
Run Cost
$0 / PDF
Guardrail
Duplicate & revision check
  • TypeScript
  • Python
  • Custom Parser
  • Cloudflare Workers
View details Try Live Demo
Withholding Slip Simulator Sample data · No client records

After: 12 fields extracted, filenames standardized, ready for Excel export.

File / Slip Number Withholding Agent Tax Base & PPh Status
2603-BPPU-0048192 · 21-100-01 PT Sinar Niaga Sentosa · 03-2026 DPP Rp 45.000.000 · PPh Rp 900.000 Ready PT Sinar Niaga_2603-BPPU-0048192.pdf
2603-BPPU-0051044 · 24-104-02 PT Nusantara Logistik · 03-2026 DPP Rp 18.500.000 · PPh Rp 370.000 Ready PT Nusantara_2603-BPPU-0051044.pdf
Row note (click any row to inspect)

All 12 fields verified and ready for monthly tax filing.

Tax documents, live demo 2025-2026

Other Production Tools

  • Automated Subscription Seat Sync via Cloud Pub/Sub

    Event-driven sync. Go + HTMX service that syncs customer seat changes automatically.

    2026
    • Go
    • Cloud Pub/Sub
    • HTMX

  • Period-Safe Rounding Write-Off Utility

    Accounting utility. Clears tiny AP/AR rounding leftovers inside the proper accounting period.

    2025-2026
    • Python
    • PostgreSQL
    • Accounting System

How we pick the right tool

  • Targeted AI / LLM

    Messy inputs

    Extracts data from varied vendor docs, emails, and free-form text.

    Cuts manual entry

  • Plain Code & Script

    Exact math & rules

    Handles reconciliation, fixed PDFs, and ERP migration at zero token cost.

    $0 run cost

  • Human Review Queue

    Ambiguous cases

    Isolates mismatches and edge cases so your accountant makes the final call.

    Audit-safe

What we automate

Three areas that drain operations and finance teams every week.

  1. Automated Document & Tax Extraction

    Documents & tax

    • Bupot, tax slips & invoices straight to Excel / ERP
    • $0 custom parsers for standard PDF layouts
    • Targeted LLM parsing for messy vendor files

  2. Bank & Billing Reconciliation

    Reconciliation & close

    • Bank statement matching against open invoices
    • Cloud usage audits against contract pricing
    • Duplicate bill & bank fee delta detection

  3. System Integration & ERP Migration

    Systems & ERP migration

    • Multi-year GL, AR/AP & CRM migration with dry-runs
    • Real-time order & subscription sync across apps
    • Focused internal tools built around your workflow

Start with one bottleneck

Prove the time saved on a single painful workflow first.

  1. 15-20 min chat

    Show Us 1 Bottleneck

    No thick spec docs. Show us the one manual task eating your team’s week.

  2. Fast proof

    Scoped Sprint

    We build the fix for that single bottleneck and test it on your real sample files.

  3. Full control

    Production & Handover

    Once proven, we deploy to daily production and hand over full control.

Common questions

Cost, timeline, data handling, and how we work, before you start a chat.

How much does it cost and how long does it take?

It depends on how complex the process and the systems involved are. From an initial 15-20 minute chat about one bottleneck, you get solution options and a cost estimate. Scope stays deliberately small (one problem per sprint) so cost and timeline are clear from the start. One Scoped Sprint usually takes 2 to 4 weeks from kickoff to a working tool. ERP migrations and larger projects take longer; we set the timeline after the first chat.

What happens in a Scoped Sprint?

We build the fix for one bottleneck and test it on real sample files from your team. The result is a working tool your team can try right away. It goes to production only after it proves it saves time.

How is our company data handled?

Every table in the case studies uses sample data, not client records. For real work, testing runs on the sample files you provide. The Bupot demo parses PDFs directly in the browser.

When do you use an LLM and when is plain code enough?

We pick whatever ships fastest, costs least to run, and is safest in production. LLMs handle messy input like vendor documents or emails. Scripts and custom parsers handle exact numbers and fixed rules at $0 run cost. Ambiguous cases go to a review queue so the final call stays with your team.

Can it connect to the ERP or systems we already use?

Yes. Our work covers multi-year ERP data migration, order and subscription sync across apps, and internal tools built around your workflow. We are not tied to one ERP vendor: what matters is your operational problem, not the brand of the system.

Who works on our project?

Variative is an independent studio in Jakarta. You talk and work directly with the engineer building the system, with no sales layer in between.

What do we get after go-live?

The system is deployed to production with a guide and full handover, so your team holds control. Later changes or additions are scoped as new work.

Ready to cut manual work in your team?

Independent automation and software studio in Jakarta. Talk directly with the engineer building your system, with no sales reps in the middle.

  • Direct with Engineer
  • Scoped Sprint Available
  • Jakarta, Indonesia
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