Base62 Encoder + Decoder (URL Shorteners)

Base62 uses digits + lowercase + uppercase = 62 characters. URL shorteners (bit.ly, YouTube video IDs) use it to produce compact, URL-safe IDs. This tool encodes integers to base62 and decodes them back.

How to use the Base62 Encoder + Decoder (URL Shorteners)

Pick a direction. Encoding: enter a positive integer (BigInt supported). Decoding: enter a base62 string.