Rabby
EVM users who want to see what a transaction will do before signing
Simulates every transaction and shows the resulting balance changes in plain language before you approve, which prevents the single most common way people lose funds. Open source, chain-aware and free of the upsell clutter that fills its rivals.
In its favour
- Pre-signing simulation showing exact balance changes
- Automatic network switching and contract-risk warnings
- Open source with no in-wallet token promotion
Against it
- EVM only — no Bitcoin or Solana support
- Smaller ecosystem means occasional dapp compatibility gaps
- Launched2021
- TypeBrowser extension and mobile
- SourceOpen
The weighted mean of the 4 axes below — each read from the fact printed beside it.
- Strongest
- Signing clarity9.6
- Weakest
- Coverage8.8
Scorecard — and what it was read from
- Signing clarity 9.6
- Simulates every transaction and displays the resulting balance changes and permission grants before signing, with risk warnings on contracts flagged as malicious.
- Key handling 8.8
- Keys are held locally and encrypted with no cloud backup by default; major hardware signers are supported as first-class signers.
- Openness 9.2
- Client is published under an open licence.
- Coverage 8.8
- EVM chains only, with automatic network switching; no Bitcoin or Solana support.