LocalOnly: toolkit for JSON & developers
The privacy-first toolkit for JSON & developers - localonly
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Read the full description
37 free developer tools that run entirely in your browser: JSON formatter, diff, JSONPath, YAML, CSV and XML converters, JWT, Base64, UUID and a PlantUML editor. Nothing you paste is uploaded, it works offline, and share links keep your data inside the link
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PH · launched Oct 19, 2026 · 2 upvotes (top 23%)
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
- Productivity
- Privacy
- Developer Tools
Similar launches
See all 414 similar launches →Could you build this?
Yes A suite of client-side developer utility tools (JSON formatter, diff, JWT decoder, UUID generator) can be rapidly generated using standard JavaScript/WebAssembly utility libraries and a modern front-end framework.
Competitors
Other products that read as similar to this one : 414 launches clear the similarity bar, closest 8 shown.
Attention rank: #31 of 415 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 352 days after the earliest competitor.
- CSV & JSON Developer Tools · ph · 2026-09-29 · 1 upvotes · similarity 0.71
- PasteKit · ph · 2026-10-18 · 88 upvotes · similarity 0.67
- JSON Editor Online · ph · 2026-09-30 · 1 upvotes · similarity 0.66
- DevUtilityKits · ph · 2026-09-24 · 1 upvotes · similarity 0.66
- DevTooKit · ph · 2026-09-19 · 2 upvotes · similarity 0.65
- Parsekit — Free JSON Tools for Developer · ph · 2026-09-29 · 1 upvotes · similarity 0.65
- Instant JSON Formatter · ph · 2026-09-27 · 1 upvotes · similarity 0.64
- Web Dev Tools Base · ph · 2026-09-22 · 1 upvotes · similarity 0.64
Other launches for this product
- No other launches for this product.
More details
- External ID
- 1284263
- Company
- n/a
- Product
- LocalOnly: toolkit for JSON & developers
- Website domain
- producthunt.com
- Cohort
- n/a
- Upvotes percentile
- 0.77
- All tags
- Productivity, Privacy, Developer Tools
- AI summary
- offline json utility toolkit for developers
- Manually corrected
- No