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Dev tools · alternatives · 2026

24 alternatives to Gogosseract, a Go Lib for CGo-Free Tesseract OCR via Wazero

Tesseract is one of the largest Open Source OCR (Optical Character Recognition) projects. There is already a Go library for using Tesseract from Go with CGo, called Gosseract. However if you are interested in OCR from Go without C complicating building and cross-compiling, there aren't any other options. Wazero is a Go WASM runtime that doesn't have any CGo dependencies. With Emscripten Tesseract has been compiled to WASM and ran within Wazero. Gogosseract provides a simple API on top of this. This project has been an interesting delve into the world of WASM.

Gogosseract is a Go library for optical character recognition that uses Tesseract compiled to WebAssembly, eliminating the need for C dependencies. It runs through Wazero, a Go WebAssembly runtime, making it easier to… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Gogosseract, a Go Lib for CGo-Free Tesseract OCR via Wazero launched in 2023; newer entries below may have overtaken it.

  1. 1

    Pure Javascript OCR for more than 100 Languages 📖🎉🖥 - naptha/tesseract.js

    2016 · github.com · its alternatives →

  2. 2

    Almost exactly 1 year ago, I submitted something to HN about using Llama2 (which had just come out) to improve the output of Tesseract OCR by correcting obvious OCR errors [0]. That was exciting at the time because OpenAI's API calls were still quite expensive for GPT4, and the cost of running it on a book-length PDF would just be prohibitive. In contrast, you could run Llama2 locally on a machine with just a CPU, and it would be extremely slow, but "free" if you had a spare machine lying around. Well, it's amazing how things have changed since then. Not only have models gotten a lot better,…

    2024 · github.com · its alternatives →

  3. 3

    A Python wrapper for the tesseract-ocr API. Contribute to sirfz/tesserocr development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  4. 4

    https://github.com/ncruces/go-sqlite3 was doing poorly on this benchmark that was posted yesterday to HackerNews [1]. With the help of some pprof, I was able to trace it to a serious performance regression introduced two weeks ago, and come up with the fix (happy to field questions, if you're interested in the nitty gritty). It's not the fastest driver around, but it's no longer the slowest: comfortably middle of the pack. It's based on a WASM build of SQLite, and thanks to https://wazero.io doesn't need CGO. [1]:…

    2023 · github.com · its alternatives →

  5. 5

    No gc, No goroutines, Produces small binaries while using the unmodified official go toolchain, and comes with complete Web SDK (generated from w3c/webref). We are building `pcz` to provide a reimagination of Go the language, in an effort to make it suitable for all kinds of programming tasks, and currently you can use it to build efficient web applications in Go using the generated Web SDK (as shown with the live web demo[1]). The journey is just starting, any suggestions? or any critics? [1]: https://primecitizens.github.io/livedemos/10-plat-web/

    2023 · github.com · its alternatives →

  6. 6

    I make a no-CGO Go SQLite driver, by compiling the amalgamation to Wasm, then loading the result with wazero (a CGO-free Wasm runtime). To compile SQLite, I use wasi-sdk, which uses wasi-libc, which is based on musl. It's been said that musl is slow(er than glibc), which is true, to a point. musl uses SWAR on a size_t to implement various functions in string.h. This is fine, except size_t is just 32-bit on Wasm. I found that implementing a few of those functions with Wasm SIMD128 can make them go around 4x faster. Other functions don't even use SWAR; redoing those can make them 16x faster.…

    2025 · github.com · its alternatives →

  7. 7OO

    Built this because people working with large document sets had no free tool that handled batch processing cleanly. Tesseract is free and runs locally. For anything that needs more accuracy — Google Vision, Gemini, or any OpenRouter model — you bring your own API key. No subscription, no markup on your usage. Export as TXT, JSON, XML or PDF. AI engines support custom prompts so you can translate, extract form fields, or get structured output in one step. App: https://onlineocrfree.qzz.io Source: https://github.com/naimurhasan/online-ocr-free

    Mar 2026 · onlineocrfree.qzz.io · its alternatives →

  8. 8

    A pure C (-std=c89) implementation of Go channels, including blocking and non-blocking selects. - GitHub - rochus-keller/CspChan: A pure C (-std=c89) implementation of Go channels, including blocking and non-blocking selects.

    2023 · github.com · its alternatives →

  9. 9

    This started as a hard requirement for my TUI-based editor application, it ended up going in a few different directions. A suite of tools that help with semantic code entities: https://github.com/odvcencio/gts-suite A next-gen version control system called Got: https://github.com/odvcencio/got I think this has some pretty big potential! I think there's many classes of application (particularly legacy architecture) that can benefit from these kinds of analysis tooling. My next post will be about composing all these together, an exciting project I call…

    Feb 2026 · github.com · its alternatives →

  10. 10

    An alternative to stack traces for your Go errors. Contribute to bracesdev/errtrace development by creating an account on GitHub.

    2023 · github.com · its alternatives →

  11. 11

    Hey all, I just wanted to share a project I've been working on for the past month. After years of heavy frameworks, I really like the idea of using htmx, but it’s a little too low level for me and needs a thin layer above it to facilitate things like components, better syntax with complex JS inside of an attribute, etc To try and solve this problem with a very minimal stack (golang + htmx) that I've been really enjoying, I'm building this project to cater to my needs and was thinking it would be useful for other developers.

    2024 · htmgo.dev · its alternatives →

  12. 12

    I built OCR Arena as a free playground for the community to compare leading foundation VLMs and open-source OCR models side-by-side. Upload any doc, measure accuracy, and (optionally) vote for the models on a public leaderboard. It currently has Gemini 3, dots.ocr, DeepSeek, GPT5, olmOCR 2, Qwen, and a few others. If there's any others you'd like included, let me know!

    Nov 2025 · ocrarena.ai · its alternatives →

  13. 13

    Write your BPF programs in Go, not C. gobee transpiles a Go subset to BPF C and generates typed cilium/ebpf bindings. - boratanrikulu/gobee

    May 2026 · github.com · its alternatives →

  14. 14

    I've developed a Python API service that uses GPT-4o for OCR on PDFs. It features parallel processing and batch handling for improved performance. Not only does it convert PDF to markdown, but it also describes the images within the PDF using captions like `[Image: This picture shows 4 people waving]`. In testing with NASA's Apollo 17 flight documents, it successfully converted complex, multi-oriented pages into well-structured Markdown. The project is open-source and available on GitHub. Feedback is welcome.

    2024 · github.com · its alternatives →

  15. 15

    We built Gonzo to make log analysis faster and friendlier in the terminal. Think of it like k9s for logs — a TUI that can ingest JSON, text, or OpenTelemetry (OTLP) logs, highlight and boil up patterns, and even run AI models locally or via API to summarize logs. We’re still iterating, so ideas and contributions are welcome!

    2025 · github.com · its alternatives →

  16. 16

    C to Go Assembly. Contribute to minio/c2goasm development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  17. 17

    Pure C implementation of Go channels. Contribute to tylertreat/chan development by creating an account on GitHub.

    2014 · github.com · its alternatives →

  18. 18

    A spatial alternative to Cmd+Tab for macOS

    May 2026 · lucidbit.app · its alternatives →

  19. 19

    Last week was big for open source LLMs. We got: - Qwen 2.5 VL (72b and 32b) - Gemma-3 (27b) - DeepSeek-v3-0324 And a couple weeks ago we got the new mistral-ocr model. We updated our OCR benchmark to include the new models. We evaluated 1,000 documents for JSON extraction accuracy. Major takeaways: - Qwen 2.5 VL (72b and 32b) are by far the most impressive. Both landed right around 75% accuracy (equivalent to GPT-4o’s performance). Qwen 72b was only 0.4% above 32b. Within the margin of error. - Both Qwen models passed mistral-ocr (72.2%), which is specifically trained for OCR. - Gemma-3…

    2025 · github.com · its alternatives →

  20. 20

    Hi there, I've been working sporadically over the last six months on a go monorepo tool (0 config it just use go workspace and go convention). It’s basically like TurboRepo but without the task runner. The tool builds a dependency graph between packages, allowing you to do things similar to what you can do in TurboRepo, like "only test the packages and the packages that depend on them, compared to the main branch," or "only install dependencies for Package A and its dependencies," etc. I use native go tool to get dependencies and create dependency graph between the package.Nothing crazy but…

    2024 · github.com · its alternatives →

  21. 21

    Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM. - tinygo-org/tinygo

    2018 · github.com · its alternatives →

  22. 22

    Z80-based CP/M emulator, in golang. Happily runs Zork, Microsoft BASIC, Turbo Pascal, Wordstar, etc. - skx/cpmulator

    2024 · github.com · its alternatives →

  23. 23

    Hey HN, I’m sharing ts-chan, an NPM package providing Go-like concurrency primitives, including channels and select statements, for TypeScript and JavaScript, supporting Node.js, Deno, Bun, and browsers. This is something I've built to make implementing Go-style "control loops" feasible in JavaScript, but there are many possible applications. Highlights: - Features a FIFO processing Chan class and versatile Select class for concurrency control. - Supports buffered channel and channel close semantics very close to Go's. - TypeScript-first implementation. - Defines a simple "channel protocol"…

    2023 · github.com · its alternatives →

  24. 24

    I've spent the past couple of weeks building a Wasm-to-Go translator. It supports a subset of Wasm useful enough to translate SQLite into 600k LoC (~20 MiB) of Go code. It already passes all of my Go SQLite driver's tests across the 20 platforms I support. Performance compared to https://wazero.io/ is a bit of a mixed bag: code that frequently crosses the Go-Wasm boundary improves, but code that spends most of its time in "Wasm land" doesn't. There's probably room for improvement (I'd love to hear your ideas), but this is also a testament to how good the wazero AOT compiler…

    Feb 2026 · github.com · its alternatives →

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