Spoold is a free, privacy-first developer toolbox. Paste into the Magic Box and it detects JSON, HTML, JWT, curl, OpenAPI, CSV, timestamps, and more—then suggests the best tool. You can also browse the full catalog by category. No sign-up is required.

Is Spoold free to use?

Yes. Core tools are free. Heavy work runs in your browser so your payloads are not processed on Spoold servers for formatting, decoding, and similar utilities.

Is my data safe with Spoold?

Tool processing for supported client-side utilities happens in your browser. Encrypted share links are designed so only people with the link can read the payload. Review the Privacy Policy for details on cookies, optional ads, and third-party services.

What tools are available?

Spoold ships 61+ tools including JSON formatter and diff, JSON Schema validation, YAML and TOML converters, HTML and Markdown preview, JWT decode and sign, OpenAPI/Swagger viewer with curl, GraphQL formatter, curl to code and curl compare, certificate viewer, CSV preview, regex tester, Mermaid, code editor, LLM token utilities, QR codes, and many encoding and text utilities.

Does Spoold show ads?

The site may display advertisements or sponsored placements to help keep the service free. House promotions highlight other Spoold tools. Ads do not change the fact that supported tools process your pasted content locally in the browser. You can read how to manage ad cookies and opt-outs in the Privacy Policy.

Can I use keyboard shortcuts?

Yes. Press Cmd or Ctrl+K to open tool search, use / from the homepage, and use per-tool shortcuts (shown in the UI) such as jj for JSON and hh for HTML where configured.

URL Parser & Inspector

Guide: URL parser & inspector

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What is this tool?

An online URL parser and URL inspector: paste any http(s) URL and see protocol, host, port, path, hash, and query parameters as structured fields. Edit mode lets you tweak components and rebuild the href—useful for fixing tracking params, testing redirects, or understanding deep links. Client-side parsing; save, history, and share match other Spoold tools.

Why use it

APIs, OAuth callbacks, and analytics URLs hide structure in long query strings. Splitting them visually beats squinting at raw text—especially when comparing staging vs production hosts or spotting double-encoding.

Key features

Structured breakdown — Components and query table.
Edit & rebuild — Toggle edit mode to adjust parts safely.
Base64 helpers — Where relevant for encoded query values (see in-tool UI).
Next tool suggestions — Jump to related converters from the parsed URL.

How to use

Paste a full URL or load the sample.
Inspect each part; expand query rows as needed.
Enable edit mode to change host/path/params and copy the rebuilt URL.

FAQ

Does it validate TLS or DNS?

No—this is structural parsing only. Use your browser or curl for live network checks.

Are internationalized domain names supported?

Paste the URL as you have it; the browser URL implementation handles parsing. Punycode display depends on the environment.

Core: URL parser online, query string parser, URI breakdown tool, decode url parameters, url encoder decoder, what is my url path.

Debug: oauth redirect url inspect, utm parameter stripper manual, double encoding query detect.

Short links: expand short url destination — pair with URL shortener for creating links.

APIs: combine with OpenAPI viewer and curl convert for end-to-end HTTP debugging.

Similar tools

Conclusion

The URL inspector turns opaque links into editable parts—ideal for developers and support engineers who live in query strings and redirects.