# host-tools

> Free developer tools for everyday tasks — JSON, encoding, hashing, DNS and HTTP checks. No sign-up, no paywall, and nothing you paste into a local tool is uploaded.

Most tools process their input entirely in the browser, so nothing you paste is uploaded. The exception is `website-status`, which uses our server for the lookup and has a daily free limit. Each entry below states which mode it uses.

Every tool is documented on its own page with what it does, what it is not, and how it handles your data. Content is written for humans; this file is only an index.

## Tools

- [Base64 Encoder / Decoder](https://host-tools.com/tools/base64/): Runs entirely in the browser; nothing is uploaded to a server. Category: Encoding
- [Code Formatter](https://host-tools.com/tools/code-formatter/): Runs entirely in the browser; nothing is uploaded to a server. Category: Text
- [Cron Expression](https://host-tools.com/tools/cron-expression/): Runs entirely in the browser; nothing is uploaded to a server. Category: Time
- [CSV to JSON](https://host-tools.com/tools/csv-to-json/): Runs entirely in the browser; nothing is uploaded to a server. Category: JSON & Data
- [DNS Lookup](https://host-tools.com/tools/dns-lookup/): Runs entirely in the browser; nothing is uploaded to a server. Category: Web
- [Hash Generator](https://host-tools.com/tools/hash-generator/): Runs entirely in the browser; nothing is uploaded to a server. Category: Security
- [HMAC Generator](https://host-tools.com/tools/hmac-generator/): Runs entirely in the browser; nothing is uploaded to a server. Category: Security
- [HTML Editor](https://host-tools.com/tools/html-editor/): Runs entirely in the browser; nothing is uploaded to a server. Category: Text
- [JSON Formatter](https://host-tools.com/tools/json-formatter/): Runs entirely in the browser; nothing is uploaded to a server. Category: JSON & Data
- [JSON Minifier](https://host-tools.com/tools/json-minifier/): Runs entirely in the browser; nothing is uploaded to a server. Category: JSON & Data
- [JSON Query](https://host-tools.com/tools/json-query/): Runs entirely in the browser; nothing is uploaded to a server. Category: JSON & Data
- [JSON to CSV](https://host-tools.com/tools/json-to-csv/): Runs entirely in the browser; nothing is uploaded to a server. Category: JSON & Data
- [JSON to TypeScript](https://host-tools.com/tools/json-to-typescript/): Runs entirely in the browser; nothing is uploaded to a server. Category: JSON & Data
- [JSON Validator](https://host-tools.com/tools/json-validator/): Runs entirely in the browser; nothing is uploaded to a server. Category: JSON & Data
- [JWT Decoder](https://host-tools.com/tools/jwt-decoder/): Runs entirely in the browser; nothing is uploaded to a server. Category: Security
- [QR Code Generator](https://host-tools.com/tools/qr-code-generator/): Runs entirely in the browser; nothing is uploaded to a server. Category: Encoding
- [Regex Tester](https://host-tools.com/tools/regex-tester/): Runs entirely in the browser; nothing is uploaded to a server. Category: Text
- [Signing Key Generator](https://host-tools.com/tools/signing-key-generator/): Runs entirely in the browser; nothing is uploaded to a server. Category: Security
- [Text Counter](https://host-tools.com/tools/text-counter/): Runs entirely in the browser; nothing is uploaded to a server. Category: Text
- [Text Diff](https://host-tools.com/tools/text-diff/): Runs entirely in the browser; nothing is uploaded to a server. Category: Text
- [Unix Timestamp Converter](https://host-tools.com/tools/timestamp-converter/): Runs entirely in the browser; nothing is uploaded to a server. Category: Time
- [URL Encoder / Decoder](https://host-tools.com/tools/url-encoder/): Runs entirely in the browser; nothing is uploaded to a server. Category: Encoding
- [UUID Generator](https://host-tools.com/tools/uuid-generator/): Runs entirely in the browser; nothing is uploaded to a server. Category: Identity
- [Website Status Checker](https://host-tools.com/tools/website-status/): Uses our server for the lookup; free, with a daily limit. Category: Web
- [YAML Validator](https://host-tools.com/tools/yaml-validator/): Runs entirely in the browser; nothing is uploaded to a server. Category: JSON & Data

## Reference

- [HTTP Status Codes](https://host-tools.com/reference/http-status-codes/)
- [MIME Types](https://host-tools.com/reference/mime-types/)

## Notes

- Every tool is free and needs no account. There is no sign-up and no paywall.
- The site is a directory of small, single-purpose tools; each page documents one of them.
- Structured data for each tool is published as schema.org SoftwareApplication.
- This file is an index. The full text of every page is at https://host-tools.com/llms-full.txt