
JSONViewerTool
Hi HN I built a small browser-based tool to convert YAML to JSON. Why: - I often work with Kubernetes manifests and APIs that require JSON - Most online tools upload data to servers, which isn’t ideal for configs What it does: - Converts YAML → JSON entirely client-side - Handles nested objects, arrays, and common YAML edge cases - No sign-up, no uploads Link: https://jsonviewertool.com/yaml-to-json Would love feedback from folks working with DevOps, APIs, or infra tooling.
JSONViewerTool launched on December 17, 2025 with 2 votes, #5,292 of 11,628 launches that month. The site was not reachable when checked in September 2026.
What it does
JSONViewerTool is a free, fast, browser-based suite of JSON utilities built for developers. It lets you instantly view, format, validate, minify, and convert JSON (JSON ↔ CSV, YAML, etc.) without uploading data to a server — everything runs locally in your browser. Designed for speed, privacy, and clean UX, it’s ideal for backend engineers, frontend devs, and anyone working with APIs or data. No sign-up. No tracking. Just simple, reliable JSON tools.
Does a similar job
all alternatives →
JSON For You – Visualize JSON in graph or table views2024 · github.com · ▲211After two years of improvement, I think it's time to share it with you all. Here’s a quick overview: - Common features include validation, formatting, minification, and more. - Visualize JSON in a graph or table view. - Structured comparison with fallback to text comparison. - Navigate though JSON using JSON pointer. - Supports jq. Would love to hear the community's questions, thoughts and comments!
YAML2JSONJul 2026 · yaml2json.com · ▲7Convert YAML to JSON instantly — free, in-browser, no upload. Handles multi-document YAML, anchors, and merge keys. JSON to YAML conversion included. Built for config files, CI pipelines, and Kubernetes manifests.
JSON Master2020 · jsonmaster.com · ▲82Format, repair, convert, and visualize JSON, XML, YAML, CSV, and TOML. Free developer platform with advanced visualizers and AI-powered syntax repair.
YAML to JSON ConverterJan 2026 · simplefiletools.com · ▲1Convert YAML to JSON instantly runs entirely in your browser
JSONBason2025 · jsonbason.com · ▲15I've been at it again, just sharing my simple JSON data inspection tool, love webdev and single page apps, this one took 4 days and was a lot of fun. The code is not obfuscated so you can inspect it and see how it works (very simple, server side is even more simple) Pretty much just do a POST of your JSON data from within your code and it will convert it into a basic table for instant search and sort. Made with love for the fun of it, no ads, no paid anything, it's totally free. Please only send in sanitized/test data only, this is meant to help make webdev a bit easier and more fun.…

More dev tools this month
the category →

open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com

Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲346Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 21d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Product Hunt launch ↗
Launched alongside, December 2025
the whole month →- GP
Life & fun · Dec 2025 · dosaygo-studio.github.io

Hi everyone! My name's Luke and I made the original Jmail here alongside Riley Walz. We had a ton of friends collaborate on building out more of the app suite last night in lieue of DOJ's "Epstein files" release. Please AMA!
Life & fun · Dec 2025 · jmail.world

PlanEat AI▲733AI turns your health goals into a 7-day menu & grocery list
AI · Dec 2025 · planeatai.com

Community, All the HN belong to you. This is an archive of hacker news that fits in your browser. When I made HN Made of Primes I realized I could probably do this offline sqlite/wasm thing with the whole GBs of archive. The whole dataset. So I tried it, and this is it. Have Hacker News on your device. Go to this repo (https://github.com/DOSAYGO-STUDIO/HackerBook): you can download it. Big Query -> ETL -> npx serve docs - that's it. 20 years of HN arguments and beauty, can be yours forever. So they'll never die. Ever. It's the unkillable static archive of HN and it's…
Dev tools · Dec 2025 · hackerbook.dosaygo.com
