Gainz Download

Free local desktop tool

Local-first crypto tax reconciliation

Gainz helps organize crypto records, reconcile holdings, inspect basis gaps, model potential sales, and export reports or an audit packet before working with a qualified tax professional.

Download from GitHub See the app
No required cloud upload User-controlled records Audit packet exports
Gainz Holdings and Accounting page showing reconciliation status cards and asset review workflow
Holdings and Accounting helps users compare imported activity against what they currently hold.
Workflow

From raw files to review-ready workpapers.

01

Import

Load exchange CSVs, demo files, or manually prepared transactions.

02

Reconcile

Compare imported activity against current holdings and source records.

03

Review

Inspect warnings, basis links, Form 8949-style rows, and open questions.

04

Export

Generate organized reports and an audit packet for professional review.

Product screenshots

What users see inside Gainz.

These screenshots use synthetic demo data so visitors can understand the workflow without exposing private financial records.

Gainz home page showing the guided workflow from import to reconciliation and export
Guided home screen Starts users with import, holdings, reconciliation, review, and export steps.
Gainz Import and Manage Data page showing data sources and recent revision history
Import and manage data Shows loaded source files, revision history, demo data, and upload entry points.
Gainz Holdings and Accounting page showing reconciliation cards and asset status rows
Holdings reconciliation Compares declared holdings, imported activity, lot estimates, and review status.
Gainz Stats and Charts page showing reconciliation summary and chart area
Stats and charts Surfaces unlinked sales, import warnings, reconciliation status, and selected-asset detail.
Gainz Model Sell page showing a potential sale scenario and estimated result fields
Model sell Lets users explore potential sale scenarios from current lots before making decisions.
Gainz Export page showing audit readiness and export actions
Export and audit readiness Packages reports, source manifests, warnings, and methodology notes for review.
Privacy and control

Local-first by design.

Gainz runs on your computer. No cloud upload is required, and source records stay under your control unless you choose to share exported files.

Download Gainz

Get the latest Windows and macOS packages from GitHub. Review release notes before installing or updating.

Download from GitHub

Important disclaimer

Gainz helps organize crypto records and generate reports. It does not provide tax, legal, financial, investment, accounting, or other professional advice. Reports and audit packets should be reviewed by the user and a qualified tax professional before relying on them.