Showing 34 open source projects for "error"

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  • 1
    derive(Error)

    derive(Error)

    derive(Error) for struct and enum error types

    This is a Rust crate that provides a convenient derive macro (#[derive(Error)]) for implementing std::error::Error on your custom error types (structs or enums). The goal is to enable library authors to build expressive, typed error types, with readable Display implementations (via #[error("...")] annotations) as well as From conversions (#[from]), source tracking (#[source]), and optionally backtraces. It is designed so that switching from handwritten error implementation to using this error is not a breaking change: you retain the same API. ...
    Downloads: 8 This Week
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  • 2
    Anyhow

    Anyhow

    Flexible concrete Error type built on std::error::Error

    This is a Rust library (crate) that provides a flexible, concrete error type built atop the standard std::error::Error trait. Its primary goal is to make error handling in applications easy: instead of defining lots of custom error types, you can use anyhow::Error (or the alias anyhow::Result<T>) for fallible functions. The crate supports attaching context to errors, so you can convert a low-level error (like “file not found”) into one with richer diagnostics (“Failed to read instructions from path X”) using .context() or .with_context(). ...
    Downloads: 10 This Week
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  • 3
    Kreuzberg

    Kreuzberg

    Polyglot document intelligence framework

    ...It emphasizes modular design so that developers can define discrete tasks or “actions” and then compose them into complex flows where dependencies, parallel steps, and error handling are declaratively managed. This structure makes it simpler to build resilient automation pipelines that span multiple technologies or APIs without needing to glue everything together manually. The platform also supports observability and monitoring, helping teams trace the progression of workflows, catch errors early, and evaluate performance trends in orchestrated systems.
    Downloads: 53 This Week
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  • 4
    Nushell

    Nushell

    A new type of shell

    NuShell (often shortened to “Nu”) is a modern, cross-platform shell written in Rust that treats all data as structured tables rather than plain text. It supports pipelines on rich typed data, has built-in commands for JSON/CSV/SQL/excel, and offers scripting, autocompletion, scoped variables, and strong error handling—bridging the gap between shell scripting and programming.
    Downloads: 32 This Week
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  • 5
    Chumsky

    Chumsky

    Write expressive, high-performance parsers with ease.

    Chumsky is a parser library for Rust that focuses on expressiveness and performance. It provides developers with tools to write high-performance parsers using combinators, suitable for a wide range of parsing tasks.​
    Downloads: 3 This Week
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  • 6
    Logos

    Logos

    Create ridiculously fast Lexers

    Logos is a lexer generator for Rust, designed to create fast and efficient lexers with minimal code. It leverages Rust's procedural macros to define token patterns, streamlining the process of lexical analysis.​
    Downloads: 7 This Week
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  • 7
    Rust-Peg

    Rust-Peg

    Parsing Expression Grammar (PEG) parser generator for Rust

    rust-peg is a Parsing Expression Grammar (PEG) parser generator for Rust. It allows developers to define grammars in a concise syntax and generates efficient parsers, facilitating the creation of domain-specific languages and interpreters.​
    Downloads: 6 This Week
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  • 8
    Axum

    Axum

    Ergonomic and modular web framework built with Tokio, Tower

    Axum is a modern, ergonomic web framework for Rust built on top of Tokio, Hyper, and Tower. It emphasizes modularity, minimal boilerplate, and seamless middleware composition via Tower services. It uses declarative extractors for routing, strong async/await support, and integrates well with the Tokio async ecosystem.
    Downloads: 8 This Week
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  • 9
    llmfit

    llmfit

    157 models, 30 providers, one command to find what runs on hardware

    ...It provides both an interactive terminal user interface and a traditional CLI mode, enabling flexible workflows for different user preferences. llmfit also supports advanced configurations including multi-GPU setups, mixture-of-experts architectures, and dynamic quantization recommendations. By presenting clear performance estimates and compatibility guidance, the project reduces the trial-and-error typically involved in local LLM experimentation. Overall, llmfit serves as a practical decision assistant for developers who want to run language models efficiently on their own machines.
    Downloads: 53 This Week
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  • 10
    Comprehensive Rust

    Comprehensive Rust

    This is the Rust course used by the Android team at Google

    ...Originally created for Google engineers, it has since been released publicly for the broader developer community. The course is structured into modular lessons that cover the fundamentals of Rust, including ownership, lifetimes, traits, generics, and error handling, before progressing to advanced topics like concurrency, async programming, unsafe Rust, and FFI. It is designed to be taught in classroom settings but can also be followed independently, making it useful both for structured training and self-study. The materials are presented in a slide-based format with accompanying examples and hands-on exercises to reinforce key concepts. ...
    Downloads: 1 This Week
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  • 11
    Typst

    Typst

    A new markup-based typesetting system that is powerful and easy

    Typst is a new markup-based typesetting system that is designed to be as powerful as LaTeX while being much easier to learn and use. Typst supercharges templates: They react to your content and format everything instantly while you type. Select from a wide range of community templates or create your own. Store shared documents in team workspaces to bring everyone in your working group on the same page. Whether in the classroom, the faculty office, or at home. Typst runs in your browser, so...
    Downloads: 13 This Week
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  • 12
    Biome

    Biome

    A toolchain for web projects, aimed to provide functionalities

    Biome formats and lints your code in a fraction of a second. Biome supports JavaScript, TypeScript, JSON, and CSS. It aims to support all main languages of modern web development. Biome has sane defaults and requires minimal configuration. Biome helps you as much as possible by displaying detailed and contextualized diagnostics. Biome unifies functionality that has previously been separate tools. Building upon a shared base allows us to provide a cohesive experience for processing code,...
    Downloads: 16 This Week
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  • 13
    Ruff

    Ruff

    An extremely fast Python linter, written in Rust

    An extremely fast Python linter, written in Rust. Ruff aims to be orders of magnitude faster than alternative tools while integrating more functionality behind a single, common interface. Ruff can be used to replace Flake8 (plus dozens of plugins), isort, pydocstyle, yesqa, eradicate, pyupgrade, and autoflake, all while executing tens or hundreds of times faster than any individual tool. Ruff is extremely actively developed and used in major open-source projects. Ruff can be configured...
    Downloads: 20 This Week
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  • 14
    Dioxus

    Dioxus

    Friendly React-like GUI library for desktop, web, mobile, and more

    Build reliable user interfaces that run anywhere. Introducing Dioxus, a React-like library for building fast, portable, and beautiful user interfaces with Rust. Runs on the web, desktop, mobile, and more. Easily describe the layout of your application with HTML or RSX syntax. Build encapsulated components that manage their own state, then compose them to make complex UIs. Components and hooks can be reused to render on the web, desktop, mobile, server, and more! 1st class support for...
    Downloads: 14 This Week
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  • 15
    Stoolap

    Stoolap

    A Modern Embedded SQL Database written in Rust

    ...Instead of relying on heavy commercial observability platforms, stoolap provides a fast, focused interface where users can filter, query, and visualize time-series data, logs, traces, and error metrics in a cohesive environment. Its intuitive query builder lets users craft powerful filters and aggregations without complex configurations, making it easier to diagnose performance bottlenecks or uncover unusual events during testing and production. Stoolap supports dashboards, alert triggering, and exports so teams can embed visualizations in reports or monitor critical thresholds in real time.
    Downloads: 7 This Week
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  • 16
    Vaultwarden

    Vaultwarden

    Bitwarden compatible server written in Rust

    ...This will preserve any persistent data under /vw-data/, you can adapt the path to whatever suits you. Some web browsers, like Chrome, disallow the use of Web Crypto APIs in insecure contexts. In this case, you might get an error like Cannot read property 'importKey'. To solve this problem, you need to access the web vault from HTTPS. This can be configured in vaultwarden directly or using a third-party reverse proxy (some examples). If you have an available domain name, you can get HTTPS certificates with Let's Encrypt, or you can generate self-signed certificates with utilities like mkcert. ...
    Downloads: 18 This Week
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  • 17
    jlrs

    jlrs

    Julia bindings for Rust

    jlrs is a crate that provides access to most of the Julia C API, it can be used to embed Julia in Rust applications and to use functionality it provides when writing ccallable functions in Rust. Currently, this crate is only tested in combination with Julia 1.6 and 1.9, but also supports Julia 1.7, 1.8, and 1.10. Using the current stable version is highly recommended. The minimum supported Rust version is currently 1.65. Julia must be installed before jlrs can be used, jlrs is compatible...
    Downloads: 8 This Week
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  • 18
    Gleam

    Gleam

    A friendly language for building type-safe, scalable systems!

    ...Hunting down bugs can be stressful so Gleam's compiler provides clear and helpful feedback about any problems. We want to spend more time developing features and less time looking for bugs or deciphering cryptic error messages. Gleam builds on top of the Erlang virtual machine, a best-in-class runtime that has enabled companies such as Discord, Ericsson, Heroku, and WhatsApp to provide low-latency services at a global scale. Gleam takes full advantage of the Erlang runtime and adds no overhead of its own.
    Downloads: 16 This Week
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  • 19
    Arkflow

    Arkflow

    High performance Rust stream processing engine

    Arkflow is a Rust-based framework for building reactive, event-driven data pipelines. Inspired by tools like Airflow and Dagster, it focuses on strong typing, modularity, and performance. Arkflow is ideal for developers who want a fast, extensible way to orchestrate workflows and data transformations in Rust.
    Downloads: 0 This Week
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  • 20
    Typst LSP

    Typst LSP

    A brand-new language server for Typst, plus a VS Code extension

    A brand-new language server for Typst. Syntax highlighting, error reporting, code completion, and function signature help. Compiles to PDF on save (configurable to as-you-type, or can be disabled)
    Downloads: 6 This Week
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  • 21
    Parser for Rust source code

    Parser for Rust source code

    Parser for Rust source code

    ...The primary target is macro authors: you can parse TokenStreams into syn::File, syn::Item, syn::Expr, syn::Type, etc. It offers rich data structures, fine-grained parsing, span tracking (for error reporting), traversal and mutation APIs (visit, fold, visit_mut), printing back to tokens, and strong feature-gating so you only compile what you need. The documentation emphasises that while the crate is geared for procedural macros (and custom derives), some of the APIs may be of more general use. Using syn you can effectively write code that analyzes or generates Rust code at compile time.
    Downloads: 8 This Week
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  • 22
    defmt

    defmt

    Efficient, deferred formatting for logging on embedded systems

    defmt ("de format", short for "deferred formatting") is a highly efficient logging framework that targets resource-constrained devices, like microcontrollers. In its current iteration defmt mainly targets tiny embedded devices that have no means to display information to the developer, e.g. a screen. In this scenario, logs need to be transferred to a second machine, usually a PC/laptop, before they can be displayed to the developer/end-user.
    Downloads: 0 This Week
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  • 23
    LOL HTML

    LOL HTML

    Low output latency streaming HTML parser/rewriter with CSS API

    ...The tag scanner may also sometimes switch the parser to the Lexer - if it requires additional tag information for the parsing feedback simulation. Having two different parser implementations for the same grammar will increase development costs and is error-prone due to implementation inconsistencies. We minimize these risks by implementing a small Rust macro-based DSL which is similar in spirit to Ragel.
    Downloads: 5 This Week
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  • 24
    DCV Color Primitives

    DCV Color Primitives

    DCV Color Primitives Library

    ...Support images greater than 4GB (64 bit). Convert an image from bgra to nv12 (single plane) format containing yuv in BT601. You might want to propagate errors to the caller function or mix with some other error types. So far, buffers were sized taking into account the image pixel format and dimensions; However, you can use a function to compute how many bytes are needed to store an image of a given format and size. If your data is scattered in multiple buffers that are not necessarily contiguous, you can provide image planes. To take into account data which is not tightly packed, you can provide image strides.
    Downloads: 4 This Week
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  • 25
    rustlings

    rustlings

    Small exercises to get you used to reading and writing Rust code

    ...For every topic there is an additional README file with some resources to get you started on the topic. We really recommend that you have a look at them before you start. The task is simple. Most exercises contain an error that keeps them from compiling, and it's up to you to fix it! Some exercises are also run as tests, but rustlings handles them all the same.
    Downloads: 0 This Week
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