Importing a BSC, Ethereum, Polygon or Tron (USDT TRC-20) wallet into Koinly or KoinX is painful when the wallet isn't supported or you only have explorer CSV exports. This toolkit converts them for you - locally, with no API keys sent anywhere, no accounts and no private keys.

What you get (PRO pack, Python 3.9+, zero dependencies)

• Multi-wallet batch: one config file -> one Koinly Universal CSV per wallet + KoinX Custom File (.xlsx) per wallet and combined.

• Inputs: Etherscan-family CSV exports (Etherscan, BscScan, Polygonscan: transactions, internal transactions, token transfers), Etherscan V2 API (free key), TronGrid public API or saved JSON.

• Swap detection (token <-> token, token <-> BNB/ETH incl. internal transfers), gas fees as proper cost rows, failed-transaction fees, zero-value address-poisoning transfers removed.

• Categorisation rules pack (JSON): reward claims, airdrops, refunds, donations, salary, gifts, gas costs. Every Koinly tag and KoinX label is validated against the importers' allowed values before writing (KoinX rejects the whole file if Label does not match Type).

• Spam / lookalike-token quarantine (URL tokens, homoglyph symbols like "USDТ") with an allow-list; quarantined rows exported separately for review.

• Own-wallet transfer marking (Koinly can then merge withdrawal + deposit) and monthly activity summary (quantities received/sent/fees per currency).

• Includes the free MIT core + a client-side web converter (single HTML file) + 29 automated tests + sample data + quick-start guide.

Good to know

• It only reformats your data. It does not fetch prices, calculate taxes or give tax/legal advice; always review the result in Koinly/KoinX. Not affiliated with Koinly, KoinX, Etherscan or Tron.

• Formats follow the official Koinly Universal and KoinX Custom File documentation (checked October 2026). The KoinX template column order and explorer CSV layouts were verified against documentation and third-party reports and tested with synthetic files - try a small file first. DeFi positions, LP tokens and NFTs may need manual tags.

• Runs 100% on your computer. Delivery: instant ZIP download.

Software developed with the assistance of automated tools and tested with synthetic data.