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Formalint

Formalint is a browser AI agent for Perform code formatting, regex testing, and JWT decoding directly in the browser without signing up or sending data to servers. Pricing: not stated on the product page. As of 2026-09-12, KanonAgent records 0 upvotes. First indexed by KanonAgent on 2026-07-09.
A set of browser-based developer tools that run locally without requiring signups or backend servers, enabling fast, private code tasks like formatting and regex testing.
Formalint  — official preview image
0 upvotes
Tracked by Kanon since Jul 9, 2026
no signal yet
status
10/100
momentum · conf 0.43
20d
tracked since 2026-08-22
1
evidence records

No signal event on file yet — status is unknown, not "quiet".

📈 Timelinewhat changed, and when
🔎 Known / Unknown 15 of 23 fields unknown
Machine-callable unknown
Open source unknown
Self-hostable1 inferred
Bring your own key unknown
Autonomy level unknown
Pricing model unknown
Integrations unknown

“Unknown” means we have not verified it — it is not a “no”. Hard filters never treat unknown as false.

🤖 Agent teardown · browser
Job to be donePerform code formatting, regex testing, and JWT decoding directly in the browser without signing up or sending data to servers.
Who it is forDevelopers
Prerequisitesself-hostable
Why it matters

By prioritizing privacy, speed, and zero setup, it meets core developer needs for secure, instant tool access without dependencies.

Evidence quotesverbatim, from the product’s own materials

“Everything runs client-side — nothing you paste is uploaded or logged”— description
Web App
Signal source: ProductHunt
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FAQ

What is Formalint?

A set of browser-based developer tools that run locally without requiring signups or backend servers, enabling fast, private code tasks like formatting and regex testing.

What does Formalint do?

Perform code formatting, regex testing, and JWT decoding directly in the browser without signing up or sending data to servers.

Why does Formalint matter?

By prioritizing privacy, speed, and zero setup, it meets core developer needs for secure, instant tool access without dependencies.

Can I self-host Formalint?

Yes — Formalint can be self-hosted.

How popular is Formalint?

As tracked by KanonAgent: 0 upvotes (first indexed 2026-07-09).

What are the best Formalint alternatives?

Similar AI agents tracked by KanonAgent: browser-use, Akari Tickets, FriendFilter + GroupFilter, page-agent, Kome, happycapy.

Formalint alternatives — similar AI agents

browser-useAkari TicketsFriendFilter + GroupFilterpage-agentKomehappycapy

Where this fits — browse the same shelf

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