JSON Formatter routes your tokens through a remote server. Forge Pro formats, decodes, and diffs in-browser — no network call, no log, no risk.
| Septim Forge Pro | JSON Formatter (ext.) | |
|---|---|---|
| Data stays in browser | Yes — runs locally, zero server calls | No — input routed through the extension's runtime |
| Install model | Web app — open a URL, use it | Chrome extension — auto-updates on any publisher change |
| Permissions requested | None. A tab is just a tab. | "Read and change data on all websites" |
| Pricing | $9 once. Lifetime access, no subscription | Free — monetized via donation prompts + tracking scripts (as of April 2026) |
| Tool count | 6 Pro tools (JSON formatter, diff checker, SQL formatter, CSV↔JSON, code minifier, TS type generator) + 16 free | 1 — JSON formatting only |
| Adware history | None. Open-source roadmap, no third-party ad code | April 2026 — injected donation popups and tracking scripts (HN thread) |
| Auto-update risk | None. Refresh the page, get the current version — no permission escalation possible | High. A silent extension update can escalate permissions and inject scripts at any time |
| Works offline | Yes — after first load, runs without network | Yes, but auto-updater keeps calling home |
Forge Pro is not one tool. It is 6 Pro tools plus 16 free utilities (JWT decoder, regex tester, hashes, UUID, color picker, more). One JSON session a week justifies it; the other 21 tools are there when you need them.
Yes. jq is excellent for piping. Forge Pro exists for the other 80% of the time when you have a JSON blob in your clipboard and want to visually inspect it in a diff, transform it, or generate a TypeScript type from it — the GUI workflow that CLIs are bad at.
Forge runs as a web app, not an extension. If a future version adds network calls, you'll see them in DevTools → Network the same day. The browser cannot hide outbound traffic from you the way an extension with "read data on all websites" permission can. You keep the escape hatch.
Open septimforge.vercel.app, open DevTools → Network tab, paste JSON into the formatter. You will see zero outbound requests during formatting. This is not a marketing claim — it is a thing you can check in 20 seconds.
Forge Pro is $9 one time. No subscription, no usage caps, no policy revisions. Coupon FOUNDINGRATE24 drops it to $7.20 through this week.