Best alternatives to Gleam in 2026

Arusto AI

Feed it a PDF, slide deck or recording and Arusto turns it into a full course — narrated videos, quizzes and all — instead of a training team building it by hand for weeks.

Braintrust

AI eval and observability platform: tracing, LLM and human scoring, quality gates. Used by Vercel, Notion and Replit.

dotenv-linter (Rust)

Lightning-fast linter for .env files. Written in Rust

rust-analyzer

Supports functionality such as 'goto definition', type inference, symbol search, reformatting, and code completion, and enables renaming and refactorings.

C2Rust

C2Rust helps you migrate C99-compliant code to Rust. The translator (or transpiler) produces unsafe Rust code that closely mirrors the input C code.

TrustInSoft Analyzer

copyright: — Exhaustive detection of coding errors and their associated security vulnerabilities. This encompasses a sound undefined behavior detection (buffer overflows, out-of-bounds array accesses, null-pointer dereferences, use-after-free, divide-by-zeros, uninitialized memory accesses, signed overflows, invalid pointer arithmetic, etc.), data flow and control flow verification as well as full functional verification of formal specifications. All versions of C up to C18 and C++ up

Rust: WebGL + Rust: Basic Water Tutorial

**Rust**: _WebGL + Rust: Basic Water Tutorial_

Rust: Hecto: Build your own text editor in Rust

**Rust**: _Hecto: Build your own text editor in Rust_

Rust: Build Your Own Shell using Rust

**Rust**: _Build Your Own Shell using Rust_

Rust: Learning Parser Combinators With Rust

**Rust**: _Learning Parser Combinators With Rust_

Rust: Add RISC-V Rust Operating System Tutorial

**Rust**: _Add RISC-V Rust Operating System Tutorial_

Rust: Roguelike Tutorial in Rust + tcod

**Rust**: _Roguelike Tutorial in Rust + tcod_

Rust: Adventures in Rust: A Basic 2D Game

**Rust**: _Adventures in Rust: A Basic 2D Game_

Rust: 0dmg: Learning Rust by building a partial Game Boy emulator

**Rust**: _0dmg: Learning Rust by building a partial Game Boy emulator_

Rust: Writing a Command Line Tool in Rust

**Rust**: _Writing a Command Line Tool in Rust_

Rust: Command line apps in Rust

**Rust**: _Command line apps in Rust_

Rust: A bot for Starcraft in Rust, C or any other language

**Rust**: _A bot for Starcraft in Rust, C or any other language_

Writing NES Emulator in Rust

Writing NES Emulator in Rust

Single Page Applications using Rust

Single Page Applications using Rust

Writing a Rust Roguelike for the Desktop and the Web

Writing a Rust Roguelike for the Desktop and the Web