HackerReposA FIELD GUIDE TO OPEN SOURCE
ProSponsor the shelf♧ 0
← Back to top all-time
toon-format
toon
TypeScript2025–2026
toon-format / toon

toon

🎒 Token-Oriented Object Notation (TOON) – compact, human-readable serialization of JSON data for LLM prompts. TypeScript SDK, CLI, benchmarks.

17Distinct people
18Mentions
0Explicit recommenders
25.6KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

🎒 Token-Oriented Object Notation (TOON) – compact, human-readable serialization of JSON data for LLM prompts. TypeScript SDK, CLI, benchmarks.

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 9:01:12 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by month18 dated mentions

Observed mentions: 2025-10-26 22:19:02 UTC to 2026-06-18 18:13:41 UTC.

0123452025-10-01 00:00:00 UTC to 2025-11-01 00:00:00 UTC (exclusive): 4 mentions; 2 submissions, 2 commentsOct 20252025-11-01 00:00:00 UTC to 2025-12-01 00:00:00 UTC (exclusive): 5 mentions; 4 submissions, 1 comments2025-12-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-01 00:00:00 UTC to 2026-02-01 00:00:00 UTC (exclusive): 3 mentions; 1 submissions, 2 comments2026-02-01 00:00:00 UTC to 2026-03-01 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 commentsFeb 20262026-03-01 00:00:00 UTC to 2026-04-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 comments2026-04-01 00:00:00 UTC to 2026-05-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2026-05-01 00:00:00 UTC to 2026-06-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2026-06-01 00:00:00 UTC to 2026-07-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJun 2026

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Oct 20252025-10-01 00:00:00 UTC2025-11-01 00:00:00 UTC422
Nov 20252025-11-01 00:00:00 UTC2025-12-01 00:00:00 UTC541
Dec 20252025-12-01 00:00:00 UTC2026-01-01 00:00:00 UTC000
Jan 20262026-01-01 00:00:00 UTC2026-02-01 00:00:00 UTC312
Feb 20262026-02-01 00:00:00 UTC2026-03-01 00:00:00 UTC211
Mar 20262026-03-01 00:00:00 UTC2026-04-01 00:00:00 UTC110
Apr 20262026-04-01 00:00:00 UTC2026-05-01 00:00:00 UTC101
May 20262026-05-01 00:00:00 UTC2026-06-01 00:00:00 UTC101
Jun 20262026-06-01 00:00:00 UTC2026-07-01 00:00:00 UTC101

What Hacker News says

3 sources
A lot of this depends on your workflow. A language with great typing, type checking and good compiler errors will work better in a loop than one with a large surface overhead and syntax complexity, even if it's well represented. This is the instinct behind, e.g. https://github.com/toon-format/toon, a json alternative format. They test LLM accuracy with the format against JSON, (and are generally slightly ahead of JSON). Additionally just the ability to put an entire language into context for an LLM - a single document explaining everything - is also likely to close the gap. I was skimming some nano files and while I can't say I loved how it looked, it did look extremely clear. Likely a benefit.
In Nanolang: A tiny experimental language designed to be targeted by coding LLMs
rinvi·Jan 9, 2026Submission

Show HN: Raindrip – AI-Friendly CLI for Raindrop API

I have 1,323 bookmarks and exactly 2 tags so I created raindrip to fix my organizing skills in Raindrop.io. After I threw an AI agent at the problem with raindrip, all my bookmarks were sorted nicely into folders and now I have 17 tags. If you trust AI enough to sort your bookmarks, give it a try: https://github.com/rinvii/raindrip Technical details: - Built with uv - TOON by default (https://github.com/toon-format/toon) - 99% test coverage and readable API error messages to help AI vibe it out
2 points · Open discussion

MAKE YOURSELF AT HOME

A few shortcuts

/
Search the collection
?
Open this guide
Esc
Close dialogs and navigation

Your saved repositories and interests stay in this browser.