Invisicode Playground

Paste text or upload a file on the left and generate an invisible Unicode payload, or drop invisicode text on the right to recover the original data. The JavaScript below was generated by GPT-5-Codex, and mirrors the invisicode reference implementation.

Plain Data

Input mode Text (LEB128 wrapped) Binary file Content Select file

No file selected.

Encode → Download Binary

No decoded file available.

Image preview

Invisicode String

Payload (invisible characters) ← Decode Copy Payload