Browser-only utility

URL Encoder & Decoder, private by default

Convert spaces, symbols, email addresses, paths, and query values into URL-safe text, or decode percent-encoded strings without uploading them.

Encode or decode URL text

Convert spaces, symbols, email addresses, paths, and query values into URL-safe text, or decode percent-encoded strings back into readable form.

Result

Enter text to encode or decode it.

Converted URL text will appear here.

Input chars

0

Output chars

0

Changed

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URL encoding and decoding runs locally in your browser. Pasted text is not uploaded to tempboxs.

How to use url encoder safely

Why URL encoding exists

URLs reserve certain characters for structure. Spaces, ampersands, question marks, hash symbols, slashes, and email symbols can change how a link is interpreted when they appear inside a query value or path segment.

Percent encoding represents those characters with safe escape sequences. That keeps a value intact when it is placed inside a URL, copied into documentation, or passed through an API request.

Encoding versus decoding

Encoding prepares readable text for use inside URLs. Decoding turns percent-encoded text back into readable form. Both steps are useful when debugging redirects, reviewing query parameters, writing docs, or comparing API examples.

The tempboxs tool uses browser URL encoding functions and does not fetch remote pages. It transforms the pasted text only.

  • Encode query values before adding them to a URL
  • Decode copied parameters before reviewing their meaning
  • Use URL Parser when you need the full URL separated into parts
  • Use URL Cleaner when you want common tracking parameters removed

Privacy notes for encoded values

Encoding does not hide sensitive data. A decoded value may reveal an email address, token, search term, internal ID, or redirect destination. Treat encoded strings as readable data, not encryption.

Before sharing a link publicly, decode suspicious or unfamiliar values and remove anything that should not leave your private workflow.

Why people use this tool

URL encoding and decoding runs locally in your browser. tempboxs does not receive pasted text or converted output.

Encode URL-safe values

Turn spaces, symbols, email addresses, paths, and query values into percent-encoded text for links and API examples.

Decode readable text

Convert percent-encoded strings back into readable values so links and copied parameters are easier to review.

Keep pasted values local

Work with query strings, support examples, and test URLs in the browser without sending them to tempboxs.

Guides from the blog

Learn more about privacy, tracking, passwords, and safer signups.

AdSense Checklist

Review content quality, policy pages, ad placement, crawlability, and technical files before AdSense checks.

ads.txt Checker

Generate a Google AdSense ads.txt line and check pasted authorized-seller records locally before publishing.

UUID Generator

Generate random UUID v4 identifiers in your browser, copy one value, or create a small batch for testing.

Timestamp Converter

Convert Unix timestamps, milliseconds, ISO dates, and local-readable times locally in your browser.

Meta Analyzer

Paste page HTML to inspect title tags, meta descriptions, canonical URLs, robots directives, Open Graph tags, and JSON-LD locally in your browser.

Schema Generator

Generate JSON-LD schema markup for articles, FAQ pages, web pages, and browser tools locally before publishing.

OG Preview

Draft Open Graph and Twitter card preview tags locally for articles, tools, landing pages, and social shares.

llms.txt Generator

Generate an llms.txt draft for AI discovery with public pages, useful tools, safety notes, and crawling guidance.

Sitemap Generator

Generate sitemap XML from public URLs and check duplicate or invalid entries locally before publishing.

Robots 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.

JWT Decoder

Decode JWT headers and payloads locally in your browser, inspect claims, and learn what still needs verification.

Strength Checker

Check password length, character variety, common patterns, and estimated guess resistance locally in your browser.

Pixel Checker

Paste email HTML to find likely tracking pixels, remote images, and marketing links locally in your browser.

YAML to JSON

Convert common YAML snippets into formatted JSON locally in your browser for configs, docs, and API examples.

User Agent Parser

Parse browser, operating system, device, engine, and bot hints from user agent strings locally in your browser.

Header Analyzer

Paste raw email headers to inspect sender fields, authentication results, and delivery hops locally in your browser.

URL Parser

Parse a URL into protocol, origin, hostname, port, path, query parameters, hash, and decoded components locally in your browser.

URL Cleaner

Clean tracking parameters from links, decode common redirect URLs, and inspect domains locally in your browser.

DNS Records

Look up common DNS record types, purposes, examples, and setup notes locally in your browser.

UTM Builder

Build campaign URLs with UTM source, medium, campaign, term, and content parameters locally in your browser.

JSON Formatter

Format, minify, and validate JSON locally in your browser with clear error feedback.

HTML Entities

Encode HTML-sensitive characters or decode named and numeric entities locally in your browser for docs, blog posts, comments, and support replies.

Regex Tester

Test JavaScript regular expressions, flags, matches, indexes, and capture groups locally in your browser.

MIME Types

Look up common file extensions, MIME types, categories, and delivery notes locally in your browser.

Markdown Previewer

Preview Markdown headings, lists, links, inline styles, and code blocks locally in your browser before publishing docs or guides.

Privacy Checklist

Generate a browser-only privacy checklist for signups, support tickets, link sharing, and publishing workflows.

Word Counter

Count words, characters, sentences, paragraphs, reading time, speaking time, and repeated terms locally in your browser.

Contrast Checker

Check foreground and background hex colors against common WCAG contrast thresholds locally in your browser.

Cron Explainer

Explain five-field cron expressions locally in your browser with readable field meanings and schedule warnings.

CSS Units

Convert CSS px, rem, em, and percent values locally in your browser with adjustable root and parent font sizes.

CSV to JSON

Convert CSV or tabular spreadsheet exports into formatted JSON locally in your browser with header and delimiter controls.

Case Converter

Convert text into lowercase, uppercase, title case, sentence case, slug, snake_case, kebab-case, camelCase, and PascalCase locally in your browser.

HTTP Status Codes

Look up common HTTP status codes, meanings, categories, and troubleshooting notes locally in your browser.

Base64 Converter

Encode plain text to Base64 or decode Base64 back to UTF-8 text locally in your browser.

Hash Generator

Generate SHA-256, SHA-384, and SHA-512 hashes for text or local files without uploading them.

FAQ

No. Conversion runs locally in your browser and does not send pasted text or output to tempboxs.

No. URL encoding is a readable formatting step, not protection. Anyone can decode percent-encoded values.

Decoding can fail when a percent sign is not followed by a valid encoded byte sequence. Check copied text for broken or partial escape sequences.

Usually encode individual values before placing them into a URL. Encoding an entire URL can escape the slashes and punctuation that make the URL structure work.