evmdasm
A lightweight ethereum evm bytecode asm instruction registry and disassembler library.
Decision gist · record as of 2026-08-14
Yes, if you need lightweight EVM bytecode disassembly with zero dependencies and accept that the project is no longer maintained. It is stable for its narrow scope. No, if you require active maintenance, support for recent EVM opcodes, or high-level analysis features—use a maintained alternative instead.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Installation is frictionless with no runtime dependencies, but the project is abandoned—last commit was 2023-06-09 and no releases since 2022-03-11.
- It remains stable for its narrow scope, but expect no maintenance or updates.
License · maintenance · safety
GPLv2 (copyleft) — Licensed under GPLv2 (copyleft). Any derivative work or distribution must also be open-source under compatible terms; proprietary use is not permitted.
last release 2022-03-11 (1617 days) · last repo commit 2023-06-09 · 61 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 131,436 downloads/mo, #11,588 on PyPI
Alternatives
Verify before relying
pip install evmdasm
from evmdasm import EvmBytecode
bytecode = EvmBytecode(bytecode_hex)
for instruction in bytecode:
print(instruction.mnemonic, instruction.operand)- Whether the opcode registry covers all EVM versions or only those current as of the 2022-03-11 release
- Whether the disassembler handles all EVM bytecode formats or has known limitations
- Specific API surface and available methods beyond basic bytecode iteration
What it is and what it does
evmdasm is a minimal, dependency-free library for working with Ethereum EVM bytecode at the instruction level. It provides a static registry of EVM opcodes and a disassembler that converts raw bytecode into a sequence of named instructions with operands. The library is intentionally lightweight—it does not perform high-level analysis, dynamic execution, or semantic interpretation, leaving those tasks to higher-level tools that build on top of it.
The package is designed as a foundation for other Ethereum analysis tools. Because it has no runtime dependencies and a narrow scope, it installs instantly and remains stable for basic bytecode inspection and disassembly tasks.
Use it for
- Disassemble raw EVM bytecode into human-readable mnemonics and operands for manual inspection
- Build a higher-level Ethereum analysis tool that needs a reliable opcode registry and bytecode parser
- Analyze smart contract bytecode to extract instruction sequences for static analysis
- Integrate bytecode parsing into security auditing or reverse-engineering workflows
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need lightweight EVM bytecode disassembly with zero dependencies and accept that the project is no longer maintained.
It is stable for its narrow scope. No, if you require active maintenance, support for recent EVM opcodes, or high-level analysis features—use a maintained alternative instead.
Install
evmdasm on PyPI
Before you install
Installation is frictionless with no runtime dependencies, but the project is abandoned—last commit was 2023-06-09 and no releases since 2022-03-11. It remains stable for its narrow scope, but expect no maintenance or updates.
License in practice
Licensed under GPLv2 (copyleft). Any derivative work or distribution must also be open-source under compatible terms; proprietary use is not permitted.
Quickstart
pip install evmdasm
from evmdasm import EvmBytecode
bytecode = EvmBytecode(bytecode_hex)
for instruction in bytecode:
print(instruction.mnemonic, instruction.operand)Verify before relying
- Whether the opcode registry covers all EVM versions or only those current as of the 2022-03-11 release
- Whether the disassembler handles all EVM bytecode formats or has known limitations
- Specific API surface and available methods beyond basic bytecode iteration
Package facts
| License | GPLv2 copyleft |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Abandoned 1,617 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 131,436 / month, #11,588 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
Evidence: evmdasm-0.1.10-py3-none-any.whl
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See also ethereum-dasm · pyevmasm · smda · py-evm · qwasm · mythril · xdis · nvidia-cuda-nvdisasm · bytecode · idapro