Work · alternatives · 2026

24 alternatives to Uprintf a universal stb-style printf implementation for C (no OS)

I've been frustrated by the lack of a truly portable, no-dependency printf for embedded and kernel development. Most solutions are either too bloated or missing key features. So I built Uprintf. It's a single-header library that gives you full printf (flags, width, precision, floats, even custom specifiers) from bare metal to desktop, with zero dependencies or #ifdef hell. Key features: · One header file, no dependencies, no dynamic allocation · Full standard support: %d, %x, %f, %.*s, etc. · Extensible with custom format handlers (add %T for your project) · Configurable: disable floats, set…

Uprintf is a single-header C library providing a portable printf implementation for embedded and kernel development. It requires no external dependencies or dynamic memory allocation and supports standard format… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
Mini_printf – minimal, self-contained and verified printf()▲22
Minimal self-contained printf() implementation for embedded and bare-metal systems - wkoszek/mini_printf
2015 · github.com · its alternatives →
2
Replace printf() with cool generic print, almost like Python/JS▲96
Convenient generic print() for C. Contribute to exebook/generic-print development by creating an account on GitHub.
2021 · github.com · its alternatives →
3
I built a web framework in C▲420
a lightweight web framework in c. Contribute to ashtonjamesd/lavandula development by creating an account on GitHub.
2025 · github.com · its alternatives →
4
How to compile C/C++ for WASM, pure Clang, no libs, no framework▲217
A little help for programmers, who wants to run C/C++ code in the browser. (This is my second attempt to show it, first time I got banned bcoz of my personal page domain, I don't really understand it why is is suspicious.)
2022 · github.com · its alternatives →
5
Dlg – Zero-cost printf-style debugging for Go▲64
Hey HN, I tend to use printf-style debugging as my primary troubleshooting method and only resort to gdb as a last resort. While I like its ease of use printf debugging isn't without its annoyances, namely removing the print statements once you're done. I used to use trace-level logging from proper logging libraries but adding trace calls in every corner quickly gets out of control and results in an overwhelming amount of output. To scratch my own itch I created dlg - a minimal debugging library that disappears completely from production builds. Its API exposes just a single function, Printf…
2025 · github.com · its alternatives →
6
Make 3D art in your browser using Lisp and math▲252
Bauble is a toy that I've been working on for a few weeks, and I think it's reached the point where other people could have fun with it! Bauble is based on raymarching signed distance functions, which are kind of like... 3D vector art? They're pretty common in the procedural art community and you can do some amazing things with them, but normally writing SDFs means writing low-level shader code. I wanted to play with SDFs, but I found it very frustrating to translate "I want to rotate this" into "okay, that means I have to construct a rotation matrix, and then apply it to the current point,…
2022 · bauble.studio · its alternatives →
7
Gutenberg – Modern CSS framework to print the web correctly▲305
Modern framework to print the web correctly. - BafS/Gutenberg
2017 · github.com · its alternatives →
8
A work-in-progress C compiler from scratch▲159
Programming language that compiles into a x86 ELF executable. - riicchhaarrd/ocean
2021 · github.com · its alternatives →
9IB
I built a minimal Forth-like stack interpreter library in C▲47
This weekend I created stacklib.h - a single-header library that brings Forth-style stack operations to C. It implements a basic interpreter with: - Stack operations (push/pop/dup/swap/over/drop) - Arithmetic (+, -, *, /) - Output (., emit, cr) - Stack inspection (.s, depth) Example usage: Stack s; stack_init(&s); dict_init(); exec(&s, "10 20 + ."); // Prints "30" exec(&s, "1 2 3 4 .s"); // Shows stack contents The library is self-contained, requires no dependencies, and handles basic error checking. It was inspired by wanting to understand…
2025 · its alternatives →
10
A dynamic C (Hot reloading) module-based Web Framework▲128
A modular web framework for C, inspired by kernel modules. Dynamically upload and compile C code at runtime to build REST APIs, WebSocket services, and more. Includes support for JSON (Jansson), SQLite, OpenSSL, and streaming large data efficiently. - joexbayer/c-web-modules
2024 · github.com · its alternatives →
11
PlutoPrint – Generate PDFs and PNGs from HTML with Python▲161
Hi everyone, I built PlutoPrint because I needed a simple way to generate beautiful PDFs and images directly from HTML with Python. Most of the tools I tried felt heavy, tricky to set up, or produced results that didn’t look great, so I wanted something lightweight, modern, and fast. PlutoPrint is built on top of PlutoBook’s rendering engine, which is designed for paged media, and then wrapped with a Python API that makes it easy to turn HTML or XML into crisp PDFs and PNGs. I’ve used it for things like invoices, reports, tickets, and even snapshots, and it can also integrate with Matplotlib…
2025 · github.com · its alternatives →
12
A completely different way to write responsive, vanilla, CSS▲248
2020 · propjockey.github.io · its alternatives →
13
A C++ dump func. that can print multi-D vectors, maps, tuples, and all▲82
A C++ library for debugging purposes that can print any variable, even user-defined types. - philip82148/cpp-dump
2023 · github.com · its alternatives →
14
I built a Cargo-like build tool for C/C++▲177
I love C and C++, but setting up projects can sometimes be a pain. Every time I wanted to start something new I'd spend the first hour writing CMakeLists.txt, figuring out find_package, copying boilerplate from my last project, and googling why my library isn't linking. By the time the project was actually set up I'd lost all momentum. So, I built Craft - a lightweight build and workflow tool for C and C++. Instead of writing CMake, your project configuration goes in a simple craft.toml: [project] name = "my_app" version = "0.1.0" language = "c" c_standard = 99 [build] type = "executable"…
Apr 2026 · github.com · its alternatives →
15
I made a Zero-config tool to visualize your code▲136
I built Staying – a tool that instantly turns your code into interactive animations with no setup required. Just write or paste your code and hit "Visualize". No installs, no accounts, no configuration. *Supports*: Python, JavaScript & experimental C++
2025 · staying.fun · its alternatives →
16
C++ runtime/compile-time detection in constexpr functions▲83
An approach for runtime detection inside a constexpr function - SaadAhmad/in_constexpr
2017 · github.com · its alternatives →
17MP
My platforming game written in C 89▲127
I have been working on this game somewhat sparsely for the past three years or so. However, it is still in a very early stage, and there is a lot of work to do. One of my friends encouraged me to post about it here, since he felt people might find interesting how I don’t use any libraries for it. The game can be played on a browser by virtue of WebAssembly. There are native ports using either MiniFB or SDL2, but you have to build those yourself. I decided to write the game in C because I feel like it is a simple language that a lot of people can understand well enough, and I didn’t think I…
2023 · zamfofex.neocities.org · its alternatives →
18
I built a tensor library from scratch in C++/CUDA▲119
Hi HN, Over the past few months, I've been building `dsc`, a tensor library from scratch in C++/CUDA. My main focus has been on getting the basics right, prioritizing a clean API, simplicity, and clear observability for running small LLMs locally. The key features are: - C++ core with CUDA support written from scratch. - A familiar, PyTorch-like Python API. - Runs real models: it's complete enough to load a model like Qwen from HuggingFace and run inference on both CUDA and CPU with a single line change[1]. - Simple, built-in observability for both Python and C++. Next on the roadmap is…
2025 · github.com · its alternatives →
19
An expression parser supporting multiple types▲33
This C library is part of a main project aimed at providing a reactive key-value (KV) database. The data is typed (numbers, strings, dates, or booleans) and can include formulas with references to other entries. Clients connected to this database receive a real-time data stream with updates to the subscribed keys, allowing them to react to changes and their dependencies. Essentially, it’s like building a distributed Excel, where data and formulas dynamically update across the system. I couldn’t find any libraries that offered the full set of features I needed for evaluating expressions, so I…
2024 · github.com · its alternatives →
20
CJIT▲83
CJIT started as a hobby project around Fabrice Bellard’s tinyCC and slowly grew into something much more practical. It is now a small portable C compiler and runner that works across Linux, macOS, and Windows, can self host, and is packaged as a single executable. What mattered most to me was keeping the barrier to entry low. You can take one small binary, drop it onto a system, and compile or run C code using the libraries already available there, without setting up a full toolchain or installing a large stack of dependencies. I find that useful for quick prototyping, testing, auditing,…
2024 · dyne.org · its alternatives →
21
Rust framework for advanced file recognition and identification▲46
Alternative to magic.h and infer. Zero dependencies. Fully extensible. Works in no_std, async, and embedded contexts.
2025 · crates.io · its alternatives →
22AC
Asdf Clone Written in Rust▲79
I think that asdf (https://asdf-vm.com) was a great idea for a project. It helps consolidate installing and running different programming languages into a similar UX. It also is built with a plugin interface that makes it easy to build support for new languages. However it is so slow. I was just testing `node -v` and it was taking ~900ms. That kind of overhead is completely unusable. My shell prompt uses runtimes inside of it for various things so this effectively makes every command take multiple seconds to complete. So I rebuilt it in Rust but using the same plugin ecosystem so…
2023 · its alternatives →
23HY
Host your 3D printable projects with version control▲74
2012 · cubehero.com · its alternatives →
24CB
Compiled, buildtime atomic CSS in JavaScript and all your favorite APIs▲47
2021 · compiledcssinjs.com · its alternatives →

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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 →