By skyforbes I kept running into the same friction while building ChatGPT-based agents and toolchains:
JSON is perfect for machines, but bloated when inside prompts.
So I built reTOONer.com a free browser tool that converts any JSON into a compact TOON-style format. Same structure, less punctuation noise, cleaner for system prompts, tool schemas, agent configs, and structured instructions.
Everything runs client-side.
No login. No backend. No data leaves the browser.
Why this helps ChatGPT devs
✓ Cleaner system / developer prompts
✓ Lower token usage on nested configs
✓ Faster edits when iterating on agent instructions
✓ Better LLM readability than raw JSON
✓ Works great with multi-tool setups, assistants, and RAG pipelines
If you’ve ever shoved a big JSON blob into a system prompt and regretted it, you need to try reTOONer.
Try it here: reTOONer.com
Still adding features (reverse conversion, style presets, token diff mode).
Feedback from actual builders is super helpful, so if you use ChatGPT for agents or tools, I’d love to hear what should come next.