FIELD TERMINAL

HexOnion

Work with hex. Share private messages.

Two browser tools: convert text and inspect Bitcoin bytes, or share an encrypted message through a link that expires after 24 hours.

Hex tool

Encode text or decode hexadecimal (hex). Conversion stays in your browser.

Explore hex tool ↓

Hex does not hide text. Wallet access applies to the converter.

Dead drop

Create an encrypted message link. It expires after 24 hours.

Open Dead drop →

Create with an invitation code. Read with the complete link, no wallet needed.

HEX TOOL / ENCODE AND DECODE

Convert text. Inspect Bitcoin bytes.

Hexadecimal (hex) represents data using 0–9 and A–F. Each pair is one byte. Anyone can decode it, so it does not keep a message secret.

Text HelloHex 48 65 6C 6C 6F

Text to hex (encode)

Turn a message into hexadecimal bytes. Supports emoji and international characters.

See a Bitcoin example ↓

Hex to text (decode)

Inspect hexadecimal data for readable passages. Some bytes are not text.

Hex tool access details

Hold at least 500000 ONION on Robinhood Chain mainnet to use the converter. Checking your balance does not transfer funds.

Encoding and decoding happen locally in your browser. Copy the result or preview an image to share on X.

Explore Bitcoin's first block Read-only example · no wallet needed

A newspaper headline inside Bitcoin data

Bitcoin's first block, the Genesis block, contains this readable passage:

The Times 03/Jan/2009 Chancellor on brink of second bailout for banks

The passage starts at byte 131 (hex position 00000083). Some bytes describe binary data rather than text. This example preserves all 285 original bytes.

00000000  01 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
00000020  00 00 00 00 3b a3 ed fd  7a 7b 12 b2 7a c7 2c 3e
00000030  67 76 8f 61 7f c8 1b c3  88 8a 51 32 3a 9f b8 aa
00000040  4b 1e 5e 4a 29 ab 5f 49  ff ff 00 1d 1d ac 2b 7c
00000050  01 01 00 00 00 01 00 00  00 00 00 00 00 00 00 00
00000060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
00000070  00 00 00 00 00 00 ff ff  ff ff 4d 04 ff ff 00 1d
00000080  01 04 45 54 68 65 20 54  69 6d 65 73 20 30 33 2f
00000090  4a 61 6e 2f 32 30 30 39  20 43 68 61 6e 63 65 6c
000000a0  6c 6f 72 20 6f 6e 20 62  72 69 6e 6b 20 6f 66 20
000000b0  73 65 63 6f 6e 64 20 62  61 69 6c 6f 75 74 20 66
000000c0  6f 72 20 62 61 6e 6b 73  ff ff ff ff 01 00 f2 05
000000d0  2a 01 00 00 00 43 41 04  67 8a fd b0 fe 55 48 27
000000e0  19 67 f1 a6 71 30 b7 10  5c d6 a8 28 e0 39 09 a6
000000f0  79 62 e0 ea 1f 61 de b6  49 f6 bc 3f 4c ef 38 c4
00000100  f3 55 04 e5 1e c1 12 de  5c 38 4d f7 ba 0b 8d 57
00000110  8a 4c 70 2b 6b f1 1d 5f  ac 00 00 00 00

Numbers on the left label the starting byte position of each row. They are not part of the data. Encoding your own message does not write it to Bitcoin.

HEX TOOL ACCESS

Check wallet access

Connect a wallet so HexOnion can check your token balance.

Required: at least 500000 ONION · Robinhood Chain mainnet

Checking your balance does not transfer funds.

  1. 01 / WALLETAWAITING CONNECTION
  2. 02 / NETWORKAWAITING WALLET
  3. 03 / TOKEN HOLDINGAWAITING NETWORK