Check a boleto before paying
Paste the digitable line or upload a screenshot of the barcode: the tool shows the issuing bank, the amount, the due date and whether any digit was changed. It all happens in your browser.
Paste the digitable line or upload an image of the barcode.
Generated entirely in your browser. Nothing you type is sent to a server.
Step by step
- Copy the boleto’s digitable line (the numbers above the barcode) and paste it.
- Or upload an image or screenshot showing the whole barcode.
- Check the bank, amount and due date, and whether the check digits match.
- Before confirming, check the beneficiary’s name and document in your bank app.
What the digitable line reveals
The digitable line has 47 digits on bank boletos and 48 on utility bills and taxes. On bank boletos, the first three digits are the issuing bank’s code, and the last ones carry the due date and the amount.
Each block of the line ends with a check digit, and the whole code has one more. They are computed from the other digits: change the amount or the bank without redoing the maths and they stop matching.
How the fake boleto scam works
The most common scam does not edit a real boleto — it issues a new, valid one in the scammer’s name that looks like the original. So the digits can all be right and the boleto still be fake.
What the check helps you notice: an issuing bank the company does not normally use, an amount that does not match what was agreed, an odd due date. The definitive sign is in the bank app: the beneficiary’s name.
What no check can show
The name of whoever gets paid is not in the digitable line — it is registered with the bank. Only your bank’s confirmation screen shows the beneficiary and their CNPJ or CPF.
If the name is not the company you owe, do not pay. Contact the company through an official channel, not the phone number or link that came with the boleto.
Official sources
Payment rules and security guidance can change. These primary sources are used to keep this page grounded in current official information.
When to use it
- Checking a boleto received by email or WhatsApp
- Checking a bill’s amount and due date before paying
- Finding out which bank issued a boleto
- Catching a digitable line copied with a mistake
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Frequently asked questions
How do I know if a boleto is genuine?
Check the bank, amount and due date here. Then, in your bank app, before confirming, see whether the beneficiary is the company you owe. If the name does not match, do not pay.
What does "invalid check digit" mean?
A digit in the line was mistyped or altered. Make sure you copied the whole line. If the error persists, ask the company for a new boleto through an official channel.
Does the check show the beneficiary’s name?
No, because the name is not in the boleto: it is registered with the issuing bank. Only your bank’s confirmation screen shows who gets paid.
Does it work with electricity, water and phone bills?
Yes. Utility bills and taxes use the 48-digit line starting with 8. The tool shows the type of company and the amount, and checks the digits.
Is my boleto sent to a server?
No. Reading and checking happen in your browser, including images. Nothing leaves your device.