About
Currency clarity for everyone
FX Comparison is a free browser tool for anyone comparing currency exchange rates over time. We show indicative mid-market movement so you can understand whether timing helped or hurt — without signing up or sending your data to a server.
How it works
Log
Enter a past exchange — date, currency pair, amount, and the rate you received (or mid-market reference).
Compare
See how that same amount would fare today, or open Compare dates to study two historical days side by side.
Track
Save exchanges to My Exchanges on this device. Review your exchange history without an account.
Learn more
New to mid-market rates or comparing two dates? Start with our mid-market rate guide or how to compare two dates.
Data source
European Central Bank mid-market rates via Frankfurter API. Rates publish on ECB business days; weekends and holidays use the nearest prior business day.
Disclaimer
- FX Comparison is for information only — not financial, tax, or investment advice.
- Mid-market rates exclude bank fees, card FX margins, and bureau spreads. Always confirm live quotes before exchanging.
- Past rate movement does not predict future rates.
Your data stays local
- Saved exchanges live in
localStorageon this browser only — no account, no cloud backup. - Clearing site data, using private mode, or switching devices will remove or hide your history.
- See Privacy for how we handle cookies and essential storage.
More about FX Comparison
No sign-up, no password. The app runs in your browser; saved exchanges use localStorage only. You can compare rates and browse trends without creating a profile.
ECB reference rates publish on business days. When you compare or load a chart, we fetch the latest available point from our API cache backed by Frankfurter. Stale or missing dates fall back to the nearest prior business day.
No. FX Comparison is an educational comparison tool for personal currency decisions. It is not regulated financial advice, not a price guarantee, and not a substitute for quotes from your bank or payment provider.
Saved exchanges stay on the device where you saved them — they are not synced to the cloud. Compare and chart features still work everywhere; only the local history needs to be re-entered on a new device.