Dev tools · alternatives · 2026
24 alternatives to schema-org-java
Java library for working with Schema.org data in JSON-LD
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. schema-org-java launched in 2022; newer entries below may have overtaken it.
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- 2RS
2019 · github.com · its alternatives →
- 3
- 4
Free schema markup generator.
Jul 2026 · nativewp.app · its alternatives →
- 5VJ
2020 · github.com · its alternatives →
- 6
Convert JSON to XML Schema (XSD) effortlessly
2025 · its alternatives →
- 7
The best schema builder for SEOs (100% FREE)
2024 · its alternatives →
- 8
- 9
Free json-ld & schema.org validator tool
Nov 2025 · schemavalidator.com · its alternatives →
- 10
Transform JSON into database-ready schemas.
2025 · schemasculpt.cloud · its alternatives →
- 11SO
2019 · ditabase.io · its alternatives →
- 12AJ
Hey HN, we’re building an open specification that lets agents discover and invoke APIs with natural language, built on the OpenAPI standard. agents.json clearly defines the contract between LLMs and API as a standard that's open, observable, and replicable. Here’s a walkthrough of how it works: https://youtu.be/kby2Wdt2Dtk?si=59xGCDy48Zzwr7ND. There’s 2 parts to this: 1. An agents.json file describes how to link API calls together into outcome-based tools for LLMs. This file sits alongside an OpenAPI file. 2. The agents.json SDK loads agents.json files as tools for an LLM that…
2025 · github.com · its alternatives →
- 13
Parse PDF to Json with AI and BYO-JSON-Schema
2025 · pdftojson.dev · its alternatives →
- 14
Generate JSON-LD schema markup without coding
Jun 2026 · msangeetha.com · its alternatives →
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Built an open JSON Schema for defining AI agent teams. Multi-agent systems are becoming a real deployment pattern — not single assistants, but teams with roles, handoffs, and human checkpoints. But there's no shared way to define one that travels across frameworks. Every implementation is scattered, locked to whichever tool you picked first. Built the schema to fix that. The schema lives at schema.openenvelope.org and is registered in SchemaStore, so if you drop a .envelope.json file in VS Code you get autocomplete and validation without installing anything. It's also on npm as…
May 2026 · openenvelope.org · its alternatives →
- 17
Combines JSON's simplicity with the power of linked data.
2023 · its alternatives →
- 18AT
Hello all To preface this is just something I've been making as a learning exercise, so all feedback is appreciated. This is a tool that converts JSON schemas into TypeScript utility classes for use in Deno. Automatic Type Generation: Typescript interfaces for the compressed and uncompressed versions of your data. Compression & Decompression: Compress and decompress your data. Validation: Built-in data validation using Ajv ensures your data adheres to the schema. Reusability: Once generated, the utility classes can be used in other Deno projects. It currently only supports a subset of JSON…
2023 · github.com · its alternatives →
- 19
Turn any URL into a JSON Schema, Zod, or Pydantic model
Jun 2026 · schema.tabstack.ai · its alternatives →
- 20
SchemaFlow▲128Real-time database schemas for AI-IDEs via MCP protocol
2025 · schemaflow.dev · its alternatives →
- 21
Build clean JSON-LD schema without writing code
Aug 2026 · loganmosby.com · its alternatives →
- 22
- 23JS
2018 · npoint.io · its alternatives →
- 24
Generate JSON schemas from your code instantly
Jul 2026 · schema-cast-web.vercel.app · 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 →