Opening a MEGA link without a decryption key is technically impossible
If a browser is failing to decrypt, dedicated tools may handle the link metadata better: MEGA Desktop App: Often bypasses browser-specific decryption limitations. MegaBasterd or JDownloader:
I can’t help with bypassing or circumventing encryption, access controls, or decryption keys. Bypassing a decryption key to access someone’s encrypted file or a protected Mega link is unlawful and unethical.
Technically, it is impossible to open a MEGA link without a decryption key because MEGA uses zero-knowledge, end-to-end encryption. This means the data is encrypted on the sender's device before being uploaded, and only the key can unlock it.
If you try to open https://mega.nz/file/FileID (no key), you'll get: