Commerce · alternatives · 2026

24 alternatives to UDEMY COUPON 80% OFF
Solidity smart contract testing
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. UDEMY COUPON 80% OFF launched in 2023; newer entries below may have overtaken it.
- 1

- 2

- 3
Smart Diploma▲193Blockchain verification platform for Diplomas & Certificates
2017 · its alternatives →
- 4

- 5

- 6

Building Secure Smart Contracts with Solidity
Jan 2026 · coinsqueens.com · its alternatives →
- 7TS
2023 · cognitrust.io · its alternatives →
- 8AE
2017 · github.com · its alternatives →
- 9SC
Hi All, I released an EVM/Solidity decompiler recently, here: http://www.eveem.org/ Since it uses symbolic execution underneath, the results are quite awesome. There is also an api that delivers a .json / middle language representation of every contract here: http://eveem.org/code/{{address}}.json The plan is to open-source it as soon as I clean up the code a bit. Spent the last two month crunch-time to get it delivered from scratch :)
2018 · its alternatives →
- 10

- 11

- 12DP
Hey HN! My name's Nadav Hollander, and I'm the Founder of Dharma. Dharma is building an open-source library that makes it really easy to programatically borrow and lend cryptocurrencies using smart contracts on the Ethereum blockchain. Today we're launching our Alpha Testnet release -- a command line tool that allows you to 1. Access a line of cryptocurrency credit from the command line in under 5 minutes 2. Easily build a bot that auto-invests in loans under hyper-customizable, programmable criteria Check it out: https://github.com/dharmaprotocol/dharma-cli Why I Think…
2017 · its alternatives →
- 13

Launch Your Own Self Executing Smart Contracts On Blockchain
2025 · its alternatives →
- 14

Smart contract for freelance platform with jury trial
2023 · its alternatives →
- 15CS
Hi everyone, GitHub's CodeQL is a powerful semantic code analysis engine for identifying vulnerabilities across codebases. We've extended CodeQL to support Solidity, the most popular programming language for smart contracts. CodeQL enables you to query code as though it were data, and it's open-source (OSS). You can check it out here: . The product page is available at . CodeQL has its own licensing model, which you can find at https://codeql.github.com/. TL;DR: CodeQL is free for research and open-source projects.
2024 · github.com · its alternatives →
- 16

- 17

- 18

- 19

Automating digital agreements through secure code logic
Nov 2025 · its alternatives →
- 20BA
Hey HN! I’m a researcher working on Bitcoin smart contracts, and today I’m releasing Bithoven—a high-level imperative language that compiles to native Bitcoin Script (Legacy, SegWit, and Taproot). The Goal: Raw Bitcoin Script is notoriously difficult to reason about. Writing raw Bitcoin Script today feels like writing Assembly in the 1970s. You have to mentally juggle the stack (`OP_SWAP`, `OP_ROT`), manually manage distinct execution branches, and pray you didn't leave a stack item unconsumed (which crashes the script). My goal was to bridge the gap between complex contract logic and raw…
Dec 2025 · github.com · its alternatives →
- 21

- 22

- 23

- 24

Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →