Dime vs rotki

Dime is a free, open-source command-line tool that calculates United Kingdom cryptoasset taxes from a transaction spreadsheet. It accepts CSV data containing fields such as dates, operations, market values, assets, quantities, fees, and income, with receive, send, swap, and transfer operations. After processing, users can review figures for available tax years and see their current fiat balance. The format supports marking sent and received assets as non-fungible, including guidance for an NFT minted from multiple NFTs. Dime runs locally and stores transactions and computed figures in a SQLite database inside the user’s .dime folder. Installation documentation covers Composer, a PHAR archive, Docker, and an experimental standalone application. Composer and PHAR installations require PHP 8.2 and BCMath; Docker requires Docker and sh or Bash. The project targets people familiar with UK tax rules who want local processing.

rotki is an open-source, self-hosted portfolio manager, accounting, and analytics tool focused on privacy. It runs locally on Linux, macOS, and Windows, with data stored on the user's device in a SQLCipher database encrypted using 256-bit AES. Exchange connections use read-only API keys processed locally, while blockchain access uses RPC endpoints chosen by the user. The dashboard tracks assets, liabilities, exposure percentages, and changes in net worth. rotki turns on-chain activity into readable events and generates profit-and-loss and tax reports. Listed integrations cover numerous chains, including Ethereum, Bitcoin, Avalanche, Polygon PoS, Arbitrum One, and Base, with early Solana support; the product says it detects and decodes more than 140 DeFi protocols. Premium adds graphs and analytics, advanced staking, higher event limits, decentralized-exchange accounting, and DeFi historical profit-and-loss reporting. It also allows encrypted database backup and synchronization across devices. The Free and Starter plans include up to 1,000 recent events and 10 notes; Starter lists no ETH staking. Supporter is €9 a month, Basic is €25 a month, and Advanced is €45 a month.