URLs, encoding, and campaign links
Parse URLs, encode values, decode text-safe formats, and build tagged campaign links.
Category
Encoding and decoding tools
Choose the format that matches the destination: percent-encode URL components, escape text for HTML, or convert text to and from Base64.
Choose the right encoding task
Encode a URL component
Percent-encode path segments and query values, then decode them back to readable text.
Escape text for HTML
Convert ampersands, angle brackets, and quotes to HTML entities or decode entities back to text.
Convert text with Base64
Encode readable text as Base64 or decode Base64 when a system expects that representation.
Not sure which format applies? Compare URL encoding, HTML entities, and Base64.
Encoding category paths
Use this category hub to move between the full catalog, sibling categories, priority tools, and supporting guides.
Text toolsCount, rewrite, and transform text directly in your browser.Developer toolsSmall formatting and data utilities for everyday development work.SEO toolsBuild campaign URLs, preview search snippets, and prepare pages for discovery.All toolsThe complete utility catalog.Workflow guidesShort explanations that connect tools to real tasks.SearchFind a utility by format, task, or workflow.HTML sitemapA full crawlable index of public pages.Word CounterChecking article, essay, and description length before publishing.Character CounterChecking short bios, titles, descriptions, and form-field copy.Case ConverterChanging headings, labels, file names, and short text snippets.Whitespace CleanerCleaning text copied from PDFs, emails, documents, and spreadsheets.JSON FormatterPretty-printing JSON responses, config snippets, and copied payloads.JSON Schema Generator From JSONGenerating a first-pass JSON Schema from an example JSON object or array.YAML FormatterCleaning pasted YAML config before adding it to docs or source control.Unix Timestamp ConverterConverting Unix epoch values from logs, APIs, databases, and support tickets.URL Encoder / DecoderEncoding URL components, query values, and reserved characters.UUID GeneratorCreating quick test IDs for fixtures, mock data, and examples.XML Formatter and ValidatorPretty-printing XML snippets, feeds, config files, and API samples.Text Diff CheckerComparing two versions of copied text.
Related workflows
Start here
| Tool | Use it when | Pairs well with |
|---|---|---|
| Base64 Encoder / Decoder | Encoding text into Base64 for systems that expect Base64 strings. | URL Encode, HTML Entities |
| HTML Entity Encoder / Decoder | Escaping ampersands, angle brackets, quotes, and apostrophes for HTML text. | URL Encode, Base64 |
| URL Encoder / Decoder | Encoding URL components, query values, and reserved characters. | HTML Entities, Base64 |
All Encoding tools
Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to readable text.
EncodingBase64Encoding
HTML Entity Encoder / Decoder
Encode characters into HTML entities or decode HTML entities back to readable text in your browser.
EncodingHTMLEntities
URL Encoder / Decoder
Encode URL components or decode percent-encoded text in your browser.
EncodingURLEncoding
How these Encoding tools fit together
| Tool | Best for | Next step |
|---|---|---|
| Base64 Encoder / Decoder | Encoding text into Base64 for systems that expect Base64 strings. | URL Encode, HTML Entities |
| HTML Entity Encoder / Decoder | Escaping ampersands, angle brackets, quotes, and apostrophes for HTML text. | URL Encode, Base64 |
| URL Encoder / Decoder | Encoding URL components, query values, and reserved characters. | , HTML Entities |
Encoding guides
URL Encoding vs HTML Entities vs Base64
Learn when to use URL encoding, HTML entities, or Base64, then open the right browser-based Tidy Utils tool for the job.
UTM Source, Medium, and Campaign Examples
Learn practical UTM source, medium, and campaign examples for tagged URLs, then build a consistent campaign link.
XML Formatting vs XML Validation
Understand the difference between pretty-printing XML, checking well-formed XML, and validating against an XML schema.
URL Parts and Query Parameters Explained
Break down protocol, host, path, query parameters, fragments, encoding, and UTM values before debugging or sharing a URL.