# tempboxs > tempboxs is a privacy-first utility website for temporary email, safer signup workflows, and browser-only developer/security tools. ## Primary Pages - https://www.tempboxs.com/ - temporary disposable inbox and homepage - https://www.tempboxs.com/tools - browser-only utility tools hub - https://www.tempboxs.com/blog - privacy, security, email, and developer guides - https://www.tempboxs.com/about - product purpose and maintenance notes - https://www.tempboxs.com/transparency - inbox model, ads, consent, and safety boundaries - https://www.tempboxs.com/privacy - privacy policy, retention, cookies, Analytics, and AdSense disclosures - https://www.tempboxs.com/terms - acceptable use, service limits, and disclaimers - https://www.tempboxs.com/contact - support, abuse reports, privacy questions, and feedback ## Browser-Only Tools These tools are designed to process pasted values locally in the user's browser unless a page explicitly says otherwise. - https://www.tempboxs.com/password-generator - random passwords, passphrases, and PINs generated locally - https://www.tempboxs.com/tools/adsense-readiness-checklist - Review content quality, policy pages, ad placement, crawlability, and technical files before AdSense checks. - https://www.tempboxs.com/tools/ads-txt-generator - Generate a Google AdSense ads.txt line and check pasted authorized-seller records locally before publishing. - https://www.tempboxs.com/tools/uuid-generator - Generate random UUID v4 identifiers in your browser, copy one value, or create a small batch for testing. - https://www.tempboxs.com/tools/timestamp-converter - Convert Unix timestamps, milliseconds, ISO dates, and local-readable times locally in your browser. - https://www.tempboxs.com/tools/meta-tag-analyzer - Paste page HTML to inspect title tags, meta descriptions, canonical URLs, robots directives, Open Graph tags, and JSON-LD locally in your browser. - https://www.tempboxs.com/tools/schema-markup-generator - Generate JSON-LD schema markup for articles, FAQ pages, web pages, and browser tools locally before publishing. - https://www.tempboxs.com/tools/open-graph-preview-generator - Draft Open Graph and Twitter card preview tags locally for articles, tools, landing pages, and social shares. - https://www.tempboxs.com/tools/llms-txt-generator - Generate an llms.txt draft for AI discovery with public pages, useful tools, safety notes, and crawling guidance. - https://www.tempboxs.com/tools/sitemap-generator - Generate sitemap XML from public URLs and check duplicate or invalid entries locally before publishing. - https://www.tempboxs.com/tools/robots-txt-tester - Paste robots.txt rules to test whether a URL path appears allowed or blocked for Googlebot, Bingbot, or another crawler locally in your browser. - https://www.tempboxs.com/tools/jwt-decoder - Decode JWT headers and payloads locally in your browser, inspect claims, and learn what still needs verification. - https://www.tempboxs.com/tools/password-strength-checker - Check password length, character variety, common patterns, and estimated guess resistance locally in your browser. - https://www.tempboxs.com/tools/tracking-pixel-checker - Paste email HTML to find likely tracking pixels, remote images, and marketing links locally in your browser. - https://www.tempboxs.com/tools/yaml-to-json-converter - Convert common YAML snippets into formatted JSON locally in your browser for configs, docs, and API examples. - https://www.tempboxs.com/tools/user-agent-parser - Parse browser, operating system, device, engine, and bot hints from user agent strings locally in your browser. - https://www.tempboxs.com/tools/email-header-analyzer - Paste raw email headers to inspect sender fields, authentication results, and delivery hops locally in your browser. - https://www.tempboxs.com/tools/url-parser - Parse a URL into protocol, origin, hostname, port, path, query parameters, hash, and decoded components locally in your browser. - https://www.tempboxs.com/tools/url-encoder-decoder - Encode URL text into percent-escaped values or decode encoded URLs locally in your browser. - https://www.tempboxs.com/tools/url-cleaner - Clean tracking parameters from links, decode common redirect URLs, and inspect domains locally in your browser. - https://www.tempboxs.com/tools/dns-record-lookup - Look up common DNS record types, purposes, examples, and setup notes locally in your browser. - https://www.tempboxs.com/tools/utm-link-builder - Build campaign URLs with UTM source, medium, campaign, term, and content parameters locally in your browser. - https://www.tempboxs.com/tools/json-formatter - Format, minify, and validate JSON locally in your browser with clear error feedback. - https://www.tempboxs.com/tools/html-entity-converter - Encode HTML-sensitive characters or decode named and numeric entities locally in your browser for docs, blog posts, comments, and support replies. - https://www.tempboxs.com/tools/regex-tester - Test JavaScript regular expressions, flags, matches, indexes, and capture groups locally in your browser. - https://www.tempboxs.com/tools/mime-type-lookup - Look up common file extensions, MIME types, categories, and delivery notes locally in your browser. - https://www.tempboxs.com/tools/markdown-previewer - Preview Markdown headings, lists, links, inline styles, and code blocks locally in your browser before publishing docs or guides. - https://www.tempboxs.com/tools/privacy-checklist-generator - Generate a browser-only privacy checklist for signups, support tickets, link sharing, and publishing workflows. - https://www.tempboxs.com/tools/word-counter - Count words, characters, sentences, paragraphs, reading time, speaking time, and repeated terms locally in your browser. - https://www.tempboxs.com/tools/color-contrast-checker - Check foreground and background hex colors against common WCAG contrast thresholds locally in your browser. - https://www.tempboxs.com/tools/cron-expression-explainer - Explain five-field cron expressions locally in your browser with readable field meanings and schedule warnings. - https://www.tempboxs.com/tools/css-unit-converter - Convert CSS px, rem, em, and percent values locally in your browser with adjustable root and parent font sizes. - https://www.tempboxs.com/tools/csv-to-json-converter - Convert CSV or tabular spreadsheet exports into formatted JSON locally in your browser with header and delimiter controls. - https://www.tempboxs.com/tools/text-case-converter - Convert text into lowercase, uppercase, title case, sentence case, slug, snake_case, kebab-case, camelCase, and PascalCase locally in your browser. - https://www.tempboxs.com/tools/http-status-code-lookup - Look up common HTTP status codes, meanings, categories, and troubleshooting notes locally in your browser. - https://www.tempboxs.com/tools/base64-converter - Encode plain text to Base64 or decode Base64 back to UTF-8 text locally in your browser. - https://www.tempboxs.com/tools/hash-generator - Generate SHA-256, SHA-384, and SHA-512 hashes for text or local files without uploading them. ## Important Safety Notes - Temporary inboxes are for short-lived, low-trust tasks such as signups, trials, downloads, and QA testing. - Do not use disposable inboxes for banking, healthcare, legal notices, account recovery, or long-term accounts. - Private mail message routes are excluded from search indexing and ad rails are disabled on /mail/ routes. - Browser-only tools reduce unnecessary upload exposure, but users should still avoid pasting live secrets or production records into any tool. - Ads may appear only when AdSense client and slot environment variables are configured; empty ad rails are not rendered. ## Recent And Useful Guides - https://www.tempboxs.com/blog/utm-link-builder-guide - UTM Link Builder Guide: Create Campaign URLs Without Breaking Links: Learn what UTM parameters mean, how to name campaign links consistently, and why tracking values should avoid personal data. - https://www.tempboxs.com/blog/privacy-checklist-before-sharing-data - Privacy Checklist: What to Review Before Sharing Data Online: Use a practical checklist before signups, support tickets, link sharing, and publishing so you avoid exposing unnecessary personal data. - https://www.tempboxs.com/blog/dns-record-types-guide - DNS Record Types Guide: A, CNAME, MX, TXT, SPF, DKIM, DMARC, and CAA: Learn what common DNS records do, how email records work together, and what to check before changing a live DNS zone. - https://www.tempboxs.com/blog/mime-type-content-type-guide - MIME Type Guide: Choose Content-Type Headers for Files and APIs: Learn why MIME types matter, how Content-Type affects browsers and APIs, and what to check when uploads or static assets behave incorrectly. - https://www.tempboxs.com/blog/user-agent-parser-guide - User Agent Parser Guide: Understand Browser, Device, and Bot Clues: Learn what user agent strings can reveal, why they are messy, and how to use browser and device clues safely during debugging. - https://www.tempboxs.com/blog/yaml-to-json-conversion-guide - YAML to JSON Guide: Convert Config Snippets Without Losing Meaning: Learn how YAML and JSON differ, what to check before converting config snippets, and why browser-only conversion helps protect examples. - https://www.tempboxs.com/blog/http-status-code-guide - HTTP Status Code Guide: Understand 200, 301, 404, 429, and 500 Errors: Learn how HTTP status code classes work, what common API and website responses mean, and what to check when debugging. - https://www.tempboxs.com/blog/css-units-conversion-guide - CSS Units Guide: Convert px, rem, em, and Percent Without Guessing: Learn when to use px, rem, em, and percent values, why font-size context matters, and how unit conversion supports consistent design tokens. - https://www.tempboxs.com/blog/color-contrast-accessibility-guide - Color Contrast Guide: Make Text Easier to Read Before You Publish: Learn how contrast ratios work, what WCAG AA and AAA thresholds mean, and how to review color pairs in real interfaces. - https://www.tempboxs.com/blog/cron-expression-guide - Cron Expression Guide: Read Schedules Before They Run: Learn how five-field cron expressions work, why schedule mistakes happen, and what to check before using cron in production. - https://www.tempboxs.com/blog/url-encoding-decoding-guide - URL Encoding and Decoding Guide: Percent-Encoding Without Confusion: Learn what URL encoding does, when to encode query values, why decoding helps review links, and why encoded data is not private. - https://www.tempboxs.com/blog/url-parser-guide - URL Parser Guide: Understand Domains, Paths, Query Strings, and Fragments: Learn how URL parts work, why query parameters can carry data, and how to review copied links before opening or sharing them. - https://www.tempboxs.com/blog/text-case-conversion-guide - Text Case Conversion Guide: Slugs, Titles, Fields, and Code Names: Learn when to use title case, sentence case, slugs, snake_case, kebab-case, camelCase, and PascalCase across content and code. - https://www.tempboxs.com/blog/csv-to-json-conversion-guide - CSV to JSON Conversion Guide: Turn Spreadsheet Rows into API-Friendly Data: Learn when to convert CSV to JSON, how headers and delimiters work, and how to handle private spreadsheet exports safely. - https://www.tempboxs.com/blog/word-count-content-quality-guide - Word Count and Content Quality: How to Plan Useful Utility Guides: Learn how word count, reading time, headings, examples, and repeated terms can help you plan clearer guides without chasing arbitrary length. - https://www.tempboxs.com/blog/markdown-previewing-guide - Markdown Previewing Guide: Draft Cleaner Docs, Guides, and Support Replies: Learn how Markdown previews help writers and developers structure headings, lists, links, and code blocks before publishing useful content. - https://www.tempboxs.com/blog/adsense-readiness-checklist-guide - AdSense Readiness Checklist: Content, Policies, Ads, and Crawlability: A practical review framework for preparing a useful website for AdSense checks without treating any checklist as an approval guarantee. - https://www.tempboxs.com/blog/regex-testing-javascript-guide - Regex Testing in JavaScript: Patterns, Flags, Matches, and Safer Examples: Learn how JavaScript regular expressions work, what flags and capture groups do, and how to test patterns with realistic examples before using them. ## Crawling Guidance - https://www.tempboxs.com/sitemap.xml lists public indexable pages. - https://www.tempboxs.com/robots.txt disallows API and private mail routes while allowing public content. - Prefer citing canonical public pages, tool pages, blog guides, and policy pages rather than private inbox/message routes.