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WebAssembly module
API
This view is built from:
Module analysis/api/v1/wasm/dedd9a7b5d8d98b44448bedb371ade1c5327f7bb5dd9effe159da816473a415fDecompiled code/api/v1/wasm/dedd9a7b5d8d98b44448bedb371ade1c5327f7bb5dd9effe159da816473a415f/code

dedd9a7b5d8d98b44448bedb371ade1c5327f7bb5dd9effe159da816473a415f

Known library: tiktoken tokenizer
Download .wasmSearch scans with this module

The file is the module exactly as the page had it. WebAssembly does nothing on its own: it runs only when a script instantiates it. Labels describe what the module contains and are leads, not verdicts.

At a glance

What it is
Built from the Rust crate tiktoken.
How it was built
Written in Rust. wasm-bindgen connects it to the page's JavaScript.
What it can do
None of its imports reaches the network, runs code or changes the page. Judged from the names of its imports.
Where we saw it
On 1 public scan, 2026-10-08.
Findings
Nothing flagged by the checks below.
Size
5.3 MiB
First seen
2026-10-08
Last seen
2026-10-08
Public scans
1
Functions
1253
Imports
7
Exports
19
Data segments
81

How it was built

Written in Rust. wasm-bindgen connects it to the page's JavaScript.

Language
RustThe Rust compiler (rustc) left its name in the module.
Connects to JavaScript
wasm-bindgenRust's bridge to JavaScript. It writes glue code on both sides, so the module can call page functions such as fetch or the DOM, and the page can call the module.
Rewritten after compiling
walrusA library for rewriting compiled modules. wasm-bindgen runs it on every build, so it comes with wasm-bindgen and says nothing more about the module.
Compiler backend
LLVMThe code generator behind rustc, clang, Emscripten and TinyGo.

Read from text inside the module (its build metadata and paths the compiler left) and from its import and export names. Whoever builds a module can change or remove these, so treat them as hints. They say how a module was made, not what it does.

What it is made of

14 Rust crates from crates.io, with the versions it was built with:

Build tools and versions it names:

  • walrus 0.23.3
  • wasm-bindgen 0.2.100 (2405ec2b4)

Read from text the build left in the module: source paths, build metadata and .NET metadata. Whoever builds a module can change or remove it, so treat it as a hint.

Decompiled code

1,252 of 1,253 functions decompiled to C-like pseudocode; 7 more are imported from the page.

  • 1 of 1,253 functions could not be decompiled.

Decompiled code is a reconstruction from the file, so names and types are often guesses. Query values in URLs are masked here; the downloaded file is unchanged.

FunctionSizeBlocksComplexityNotes
No functions match.

File layout

WebAssembly binary format version 1, core module, 12 sections (1 custom).

SectionOffsetSizeItems
type0x8359 bytes43
import0x16f310 bytes7
function0x2a51.2 KiB1,253
table0x78f9 bytes1
memory0x7985 bytes1
global0x79d11 bytes1
export0x7a8463 bytes19
element0x9771.1 KiB1
datacount0xdd33 bytes
code0xdd6682.0 KiB1,253
data0xab5c44.7 MiB81
custom: producers0x55587d74 bytes
Memory
91 pages (5.7 MiB), no upper limit
Table
565 entries, up to 565 entries, funcref
Globals
1
Element segments
1
Declared data segments
81
Function names
none (names were stripped)

Data segments

Each bar is one segment of the module's data: as wide as its size, as tall as its entropy. Bars above the dashed line are encrypted or compressed. 81 segments, 4.7 MiB in all. The chart shows 64: the first 64 and every encrypted or compressed one.

17 segments not drawn (14.6 KiB)02468Segment 0: 10 bytes, 2.45 bits per byteSegment 1: 157 bytes, 4.72 bits per byteSegment 2: 613 bytes, 4.27 bits per byteSegment 3: 6 bytes, 1 bits per byteSegment 4: 6 bytes, 1.46 bits per byteSegment 5: 4,509,602 bytes, 5.52 bits per byteSegment 6: 129 bytes, 4.66 bits per byteSegment 7: 128 bytes, 2.77 bits per byteSegment 8: 34 bytes, 2.07 bits per byteSegment 9: 15 bytes, 0.72 bits per byteSegment 10: 19 bytes, 0.9 bits per byteSegment 11: 1,185 bytes, 4.55 bits per byteSegment 12: 1,685 bytes, 4.28 bits per byteSegment 14: 5 bytes, 1.92 bits per byteSegment 15: 4,207 bytes, 4.7 bits per byteSegment 16: 45 bytes, 4.08 bits per byteSegment 17: 301 bytes, 4.51 bits per byteSegment 18: 465 bytes, 5.14 bits per byteSegment 20: 4,583 bytes, 5.52 bits per byteSegment 21: 51 bytes, 1.3 bits per byteSegment 22: 9,043 bytes, 6.02 bits per byteSegment 23: 1,847 bytes, 5.02 bits per byteSegment 24: 42 bytes, 1.41 bits per byteSegment 25: 22 bytes, 1.82 bits per byteSegment 26: 102 bytes, 1.76 bits per byteSegment 27: 2,581 bytes, 5 bits per byteSegment 29: 1,297 bytes, 4.87 bits per byteSegment 30: 6,361 bytes, 4.98 bits per byteSegment 32: 757 bytes, 4.49 bits per byteSegment 33: 5 bytes, 1.92 bits per byteSegment 34: 1,655 bytes, 4.72 bits per byteSegment 35: 2,121 bytes, 4.79 bits per byteSegment 36: 1,604 bytes, 4.84 bits per byteSegment 37: 75 bytes, 0.63 bits per byteSegment 38: 2,486 bytes, 5.12 bits per byteSegment 39: 342 bytes, 4.87 bits per byteSegment 40: 38 bytes, 2.19 bits per byteSegment 41: 16 bytes, 1.01 bits per byteSegment 45: 2,713 bytes, 4.73 bits per byteSegment 47: 312,881 bytes, 5.07 bits per byteSegment 48: 913 bytes, 5.05 bits per byteSegment 53: 2 bytes, 1 bits per byteSegment 54: 2 bytes, 1 bits per byteSegment 55: 2 bytes, 1 bits per byteSegment 56: 3 bytes, 1.58 bits per byteSegment 57: 3 bytes, 1.58 bits per byteSegment 58: 3 bytes, 1.58 bits per byteSegment 59: 3 bytes, 1.58 bits per byteSegment 60: 4 bytes, 2 bits per byteSegment 61: 4 bytes, 2 bits per byteSegment 62: 4 bytes, 2 bits per byteSegment 63: 5 bytes, 2.32 bits per byteSegment 49: 5,457 bytes, 7.93 bits per byte
data segment encrypted or compressed 17 segments not drawn 7.5 bits per byteHeight: bits per byte. Width: share of all the data.
  • Segment 49: 5,457 bytes at 7.93 bits per byte

Imports (7)

Imports from wbg are wasm-bindgen glue. Each __wbg_… import calls one JavaScript function in the page, and its name says which (__wbg_fetch_… calls fetch). The __wbindgen_… imports are wasm-bindgen's own helpers for strings, errors and memory.

  • ./tiktoken_bg.js.__wbindgen_object_drop_ref
  • ./tiktoken_bg.js.__wbindgen_is_undefined
  • ./tiktoken_bg.js.__wbg_stringify_f7ed6987935b4a24
  • ./tiktoken_bg.js.__wbindgen_string_get
  • ./tiktoken_bg.js.__wbindgen_error_new
  • ./tiktoken_bg.js.__wbg_parse_def2e24ef1252aff
  • ./tiktoken_bg.js.__wbindgen_throw

Exports (19)

Text it passes to the page

Fixed text the module hands to the page's JavaScript when it calls an import, read from the module file. Imports that reach the network, run code or change the page come first; web addresses are shown as their host.

ImportText
./tiktoken_bg.js.__wbindgen_error_newInvalid encoding
./tiktoken_bg.js.__wbindgen_error_newInvalid value for disallowed_special
./tiktoken_bg.js.__wbindgen_error_newInvalid value for allowed_special

In our sandbox

  • Produced 2 strings at run time, listed below.

Strings it produced at run time

Text that appeared while it ran and is not in the file: decoded, decrypted or built by its code. Web addresses are shown as their host.

  1. library/core/src/str/pattern.rs
  2. Invalid model:

Checks we ran

  • Threat-feed matches: none
  • Names of mining software or pools: none
  • CryptoNight mining structure: not found
  • Hashing or cipher loops: none
  • Known hashing or cipher algorithms: none recognised
  • Encrypted or compressed data: none
  • JavaScript stored inside: none
  • Other modules inside: none
  • Imports that read browser or page details: none
  • Function names: removed (usual in release builds)

Static checks of the file: nothing in it was run for these. A finding is a lead, not a verdict.

Shares code with

Other modules that contain some of the same functions. They are ranked by functions few modules have, so a language's own runtime does not link every module built with it. Shared code often means a shared library or the same developer. It is a lead, not a verdict.

  • 6e45ba2c…cd5f7844.9 KiB · first seen 2026-10-16 · 16 functions in common (2% of this module's, 29% of that one's)
  • 1edcf456…31803059.8 KiB · first seen 2026-10-04 · 16 functions in common (2% of this module's, 21% of that one's)
  • a384c2a2…8cf8d418.6 KiB · first seen 2026-10-18 · 9 functions in common (1% of this module's, 30% of that one's)
  • 4eb7b21e…cfee2d35.2 KiB · first seen 2026-10-05 · 4 functions in common (under 1% of this module's, 11% of that one's)

Seen on 1 public scan

PageTitleSeenHow it got there
www.chat-data.comAI Agent & Chatbot Platform for Customer Support | Chat Data2026-10-08Downloaded as a file