Dev tools · alternatives · 2026
24 alternatives to Tysm, a Rust crate for using ChatGPT with Structured Outputs
Hi HN! This Christmas I made `tysm`, a rust crates which simplifies using ChatGPT with Structured Outputs. Essentially you just tell it the rust type you want the output to conform to, and it handles creating the JSON Schema, passing it to ChatGPT's chat-completions API, and deserializing the response. Structured Outputs are very useful because they guarantee that the response will conform to whatever type you expect. I'm already finding my crate very useful since I love using Structured Outputs but I hate writing JSON Schemas myself. Technical details for rust heads: To generate the JSON…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Tysm, a Rust crate for using ChatGPT with Structured Outputs launched in 2024; newer entries below may have overtaken it.
- 1
Built a tool for transforming unstructured data into structured outputs using language models (with 100% adherence). If you're facing problems getting GPT to adhere to a schema (JSON, XML, etc.) or regex, need to bulk process some unstructured data, or generate synthetic data, check it out. We run our own tuned model (you can self-host if you want), so, we're able to have incredibly fine grained control over text generation. Repository: https://github.com/automorphic-ai/trex Playground: https://automorphic.ai/playground
2023 · automorphic.ai · its alternatives →
- 2
Hey HN, I've been using GPT a lot lately in some side projects around data generation and benchmarking. During the course of prompt tuning I ended up with a pretty complicated request: the value that I was looking for, an explanation, a criticism, etc. JSON was the most natural output format for this but results would often be broken, have wrong types, or contain missing fields. There's been some positive movement in this space, like with jsonformer (https://github.com/1rgs/jsonformer) the other day. But nothing that was plug and play with GPT. This library consolidates…
2023 · github.com · its alternatives →
- 3
Contribute to olup/zod-chatgpt development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 4
Introducing the Code ChatGPT Plugin - a new era of seamless interaction between ChatGPT and your codebase. This TypeScript Code Analyzer furnishes a suite of utilities to analyze TypeScript code, enabling ChatGPT to "talk" with YOUR code. Fetch a list of all the files in your project, list of every function in a TypeScript or JavaScript file, or even get the content of a specific function, all while staying in your conversation with ChatGPT. With accessible API endpoints, you can effortlessly navigate your codebase and ask ChatGPT anything you can think of about it. Say goodbye to the days…
2023 · github.com · its alternatives →
- 5
A ChatGPT-based reviewer for your GitHub pull requests
2023 · github.com · its alternatives →
- 6
Scrape Comfort▲126ChatGPT-based local scraper for easy scraping
2023 · scrapecomfort.com · its alternatives →
- 7
Hi Hacker News! My name is Sagar, I’m working on a startup called Speakeasy - we’re making all APIs self-service. The platform is currently in beta, but we’re independently launching this tool which you can use to generate language-idiomatic, statically-typed TS SDKs from any public OpenAPI schemas. We hope to continue iterating on this to give devs a way to easily generate high fidelity client SDKs for all the major languages. Inspiration for this product is from past experiences struggling with OpenAPI. I was originally optimistic about using the OpenAPI tools to build out our offering,…
2022 · easysdk.xyz · its alternatives →
- 8
GPTRecap▲134I always loved seeing my Spotify Wrapped every year and wondered why doesn’t ChatGPT have something similar? So I built GPTRecap: paste your exported file and instantly see your top topics, total messages, and more. All core features run 100% in your browser, no account, no data stored. Premium insights (like deeper topic analysis) are processed via OpenAI, but nothing is saved on our servers. Would love feedback! What stats would you want to see next?
2025 · gptrecap.com · its alternatives →
- 9
crates.io serves as a central registry for sharing crates, which are packages or libraries written in Rust that you can use to enhance your projects
2020 · crates.io · its alternatives →
- 10
Hey HN! We’ve just open-sourced model2vec-rs, a Rust crate for loading and running Model2Vec static embedding models with zero Python dependency. This allows you to embed text at (very) high throughput; for example, in a Rust-based microservice or CLI tool. This can be used for semantic search, retrieval, RAG, or any other text embedding usecase. Main Features: - Rust-native inference: Load any Model2Vec model from Hugging Face or your local path with StaticModel::from_pretrained(...). - Tiny footprint: The crate itself is only ~1.7 mb, with embedding models between 7 and 30 mb. Performance:…
2025 · github.com · its alternatives →
- 11WA
TLDR: Check out our documentation search here: https://xata.io/docs/overview Hello HN. I'm a designer over at Xata. We build a serverless database platform on top of Postgres and Elastic-like search that provides goodies like a native TypeScript client for type support in your IDE. Long story short, we're trying to bundle all the normal stuff you need out of a database along with branching, so you don't have to glue everything together. Today we added a new /ask/ endpoint to our search product that bundles in ChatGPT support into any stored data. Why would you…
2023 · xata.io · its alternatives →
- 12AT
Hey HN! Erik here from banana.dev We’ve trained a small(ish) language model on structured extraction, and today we’re launching a playground for it at https://anythingtojson.com. Give it a try! This model continues our work on structured generation, following last week’s launch of Fructose[1], a python client for strongly-typed LLM responses. There seem to be two distinct halves of the problem intended to be solved by Fructose and structured generation: 1. the reasoning ability of the model, such as performing chain of thought, creative acts, and natural language tasks. In a way,…
2024 · anythingtojson.com · its alternatives →
- 13
ChatGPT JSON exports searchable, organized, analytic!
2025 · codepen.io · its alternatives →
- 14
A crate to protect against malicious JSON payloads. - ADD-SP/json-threat-protection.rs
2024 · github.com · its alternatives →
- 15
Hi HN, I’m the founder of Pangea. We’ve built a developer platform where you can easily add security to your code through a simple set of APIs - features like authentication, secrets management, audit logging, redaction of PII, restricting embargoed countries, known threat actor intelligence, etc. With the ChatGPT and LLM explosion, we thought of ways to reduce the risk of both the inputs and outputs from these services. Our NextJS sample app adds a security layer on top of ChatGPT with various security services that you can implement quickly. It’s basically a front end to the OpenAI API…
2023 · github.com · its alternatives →
- 16
Hi HN! Two weeks ago at their Dev Days, OpenAI unveiled ChatGPT apps, interactive widgets that render inside ChatGPT using the Apps SDK and MCP. Building them using their template repository was surprisingly painful: every time you make a change on your React widget, you need to rerun the entire build pipeline to get fresh JS and CSS assets. The dev feedback loop was pretty terrible. That’s why I built a TypeScript starter that gets you up and running in under a minute. Clone, npm install, npm run dev, paste your ngrok URL into ChatGPT, and you're iterating on widgets with Hot Module Reload…
Oct 2025 · github.com · its alternatives →
- 17CA
crates.io serves as a central registry for sharing crates, which are packages or libraries written in Rust that you can use to enhance your projects
2020 · crates.io · its alternatives →
- 18
Hi HN, I'm Alex, a full-stack developer from Toronto, Canada. I recently built a Chrome extension that organizes ChatGPT conversations into folders, allowing users to sort and save important information for easy reference. The idea for this extension came from a friend who highlighted the lack of good (and affordable) ChatGPT organizers. Many existing tools were either low-quality or overpriced, so I decided to create one that was both reliable and accessible. I built the extension using plain JavaScript and developed a backend with Express to handle Google authentication. For storage, I…
2025 · chatgpt-folders.netlify.app · its alternatives →
- 19
Hey HN, Like many of you, I’ve been using ChatGPT to brainstorm, debug code, and even plan projects. But as the number of conversations grew, I found myself scrolling endlessly trying to find old chats. It was frustrating and unproductive. So, I built PinFold – a Chrome extension to help manage and organize ChatGPT conversations. With PinFold, you can: Pin important chats for quick access. Organize conversations into folders (e.g., personal vs. work-related). Declutter your ChatGPT history and boost productivity. It's privacy-focused: no data is sent to external servers – everything is…
2024 · pinfold.me · its alternatives →
- 20
I built over 3-4 weeks to solve my own pain point, picking up rust along the way. It has a browser version that works online/offline and cross platform desktop as well. It was a pretty intense sprint. About TreeSnap, well it simplifies this preparation of sharing code with Chat LLMs. In my use case, making o3 via ChatGPT a lot more cost-effective to use for these tasks compared to Cursor: How it works: Select files/folders → generates a single text bundle + ASCII tree Instantly shows per-file and total token counts (list & treemap views) Quickly trim unnecessary files or folders to…
2025 · treesnap.app · its alternatives →
- 21
Chat client made using Rust and Cursive. Contribute to sambajahlo/RustyChat development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 22
A blogging platform where content are markdown files and html files, written in Rust
2024 · crates.io · its alternatives →
- 23
The safest and lightest forum, powered by rust. Contribute to freedit-org/freedit development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 24CF
what it can do for you lately: let's say you work at uber. uber probably has a database with a bunch of rides data in it. it probably has a rides_fulfilled table, a users table, a drivers table, and a whole lot more tables but just imagine it was that simple for now. let's say you are in charge of the Atlanta geo and you want to summarize the drivers / riders / financial performance of your city on Superbowl Sunday. before chat ur data, you'd probably login to the corporate bi tool, change some filters on a dashboard, take some screenshots, go to the next dashboard, take some more…
2024 · chaturdata.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 →