TypeScript Error Lookup and Fix

Paste any TS error code and get its exact meaning with ordered fix steps.

At a glance

TypeScript Error Lookup and Fix is a free, client-side tool that decodes TypeScript compiler errors (TS1005, TS2304, TS2307, TS2322, TS2339, TS2345, TS2769, TS6133, TS7006, TS2531, TS18048): paste an error, get its exact meaning plus ordered fix steps with before/after snippets. Everything runs 100% in your browser; nothing is uploaded.

100% In-Browser & Private

Pasted errors are matched against an offline table strictly in your browser memory. Zero data is uploaded to any server.

Paste your TypeScript error

Try:

All covered error codes

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Why Use This TypeScript Error Lookup and Fix?

Paste-to-fix lookup: full tsc lines, bare codes (TS2322 or 2322), and lowercase variants all resolve to the right card.

Every fix card shows the exact meaning, usual causes, ordered fix steps, and before/after snippets with one-click copy.

Browsable offline table of all 11 covered codes with live search filter for no-code-detected cases.

100% client-side and private: the offline table ships with the page and nothing is ever uploaded.

How to Use TypeScript Error Lookup and Fix

Paste the error

Paste the full tsc error line or just the code (TS2322 or 2322) into the lookup box.

Read the fix card

Read the matched fix card: exact meaning, ordered fix steps, and a before/after snippet.

Copy and apply

Copy the steps into your editor, or browse the full code table when no code is detected.

TS2322 Lookup example

The engine extracts code TS2322 from the pasted tsc line, matches its curated fix card, and returns the meaning with three ordered fix steps plus a before/after snippet.

Pasted tsc Error Source

error TS2322: Type 'string' is not assignable to type 'number'.

Fix Card Processed

TS2322 — Type 'A' is not assignable to type 'B'. Fix: 1) convert the value (Number(s)), 2) widen the annotation (string | number), 3) narrow before assignment.

Technical Specifications & Engine Details

Technical specifications and engine details for TypeScript Error Lookup and Fix
Specification	Details
Supported Formats	TEXT → TEXT
Execution Mode	100% Client-Side In-Browser (client)
Browser Requirements	Modern browser with JavaScript enabled.
Performance Constraints	Lookup table covers the 11 curated compiler codes at launch; project-specific debugging and the full 1000+ code catalog are out of scope. Runs client-side in browser memory.

Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

Your pasted errors remain strictly on your local device. Zero data is transmitted to external servers.

Frequently Asked Questions

What does TypeScript error TS2322 mean and how do I fix it?

TS2322 means the value's type does not satisfy the target annotation. Fix it by converting the value to the expected type, widening the annotation to accept the value, or narrowing the value before assignment.

How do I fix TS2304 Cannot find name?

TS2304 means the identifier is not declared in the current scope. Add the missing import, correct the spelling, or install the @types package that declares it.

How do I fix TS2339 Property does not exist?

TS2339 means the property does not exist on that type. Add the property to the interface, narrow the union to a member that has it, or extend the interface with the missing field.

Is this TypeScript error lookup private?

Yes. Every lookup runs entirely in your browser's JavaScript sandbox; pasted errors are never transmitted to any server.

Methodology

Fix cards are based on the TypeScript compiler's diagnostic messages and the error codes listed on this page. Suggestions follow compiler semantics.

Last updated October 2026.