Encoders & converters
Encode files, URLs, and text without switching between desktop apps
Browser tools for Base64, URL encoding, number bases, HTML entities, and file-to-text conversions that teams reuse every day.
Choose this category when the real job is moving data between formats safely, embedding binary assets in markup, or turning user input into a representation another system accepts.
Tools in this hub
Featured picks
Language support
Common tasks
Move binary data through text-only channels
Convert files and strings to Base64 when an API payload, email, or embedded asset needs a text-safe format.
Protect URLs and markup snippets
Encode URL parameters or HTML entities before pasting content into browsers, CMS fields, or templates.
Translate values between representations
Switch between number bases or Unicode-style text output when debugging encoding mismatches.
Featured tools
Start with the registered tools that cover the most common jobs in this workflow, then browse the full list.
Base64 String Encoder & Decoder
Encode and decode Base64 strings instantly with this free online converter. Supports standard and URL-safe Base64. No sign-up required, runs entirely in your browser.
URL Encoder & Decoder — Free Online
Encode and decode URLs instantly with this free online tool. Supports encodeURIComponent and encodeURI modes for query strings and full URLs. No sign-up required.
Base64 File Converter — Free Online
Convert files to Base64 and Base64 back to files with this free online tool. Supports images, PDFs, and any binary file. No sign-up required.
HTML Entity Encoder & Decoder — Free Online
Encode and decode HTML entities instantly with this free online tool. Escape special characters to prevent XSS and display issues. No sign-up required.
All tools in this category
Browse every registered tool in this category and keep moving through the real task at hand.
Base64 String Encoder & Decoder
Encode and decode Base64 strings instantly with this free online converter. Supports standard and URL-safe Base64. No sign-up required, runs entirely in your browser.
JSON to TypeScript & Zod Generator
Convert JSON into typed TypeScript interfaces, type aliases, or Zod validation schemas locally in your browser.
PDF Merge, Split & Reorder — Select Exact Page Ranges
Merge multiple PDFs, reorder source documents, extract selected pages, or split one PDF into range-based files entirely in your browser.
HTML to Text and Markdown Converter
Turn pasted HTML into readable plain text or Markdown while preserving useful document structure.
URL Encoder & Decoder — Free Online
Encode and decode URLs instantly with this free online tool. Supports encodeURIComponent and encodeURI modes for query strings and full URLs. No sign-up required.
Barcode Generator & Reader — Code 128, EAN, UPC, Code 39 & ITF
Generate validated 1D barcodes as PNG files and decode barcode images locally in your browser. Supports Code 128, EAN-13, UPC-A, Code 39, and ITF.
Morse Code Translator — Text to Morse and Back
Convert text to Morse code and decode Morse back to text, with the ITU chart, prosigns, adjustable WPM timing, and audible playback.
Base64 File Converter — Free Online
Convert files to Base64 and Base64 back to files with this free online tool. Supports images, PDFs, and any binary file. No sign-up required.
HTML Entity Encoder & Decoder — Free Online
Encode and decode HTML entities instantly with this free online tool. Escape special characters to prevent XSS and display issues. No sign-up required.
Number Base Converter
Free online number base converter. Convert between binary, octal, decimal, hexadecimal, and any base from 2 to 36 instantly.
Roman Numeral Converter
Convert integers from 1 to 3999 into Roman numerals, or turn Roman letter strings back into numbers.
Text to Binary
Encode text as space-separated binary bytes, or decode pasted 8-bit binary groups back into basic character output.
Text to Unicode
Convert text into Unicode escape sequences, or decode pasted braced Unicode code-point escapes and uFFFF escapes back into characters.
.env / YAML / JSON Converter — Free Online
Convert between .env, JSON, and YAML formats instantly with this free online converter. Transform environment variable files, configuration formats, and dotenv files with one click.
Text Encoder Explorer — Unicode, UTF-8, UTF-16 Byte Inspector
Explore how text is encoded in UTF-8, UTF-16, and Unicode code points. View per-character byte breakdowns, hex dumps, and encoding statistics. Free online tool, runs entirely in your browser.
Related categories and collections
Continue with adjacent category pages and task collections that solve the next step.
Data formats
Structured data tools for JSON formatting, YAML and XML conversion, schema validation, CSV editing, and API-ready output.
Text
Browser-based text helpers for Markdown, lists, tables, Unicode lookups, readability checks, and reusable snippets.
Web & auth
Practical browser utilities for JWTs, HTTP requests, headers, cookies, SEO checks, OpenAPI files, and other web troubleshooting tasks.
PDF & documents
A focused collection for PDF signature checks, document markup prep, tables, and file-to-text workflows. Fuller document editing remains a roadmap item.
International text
A practical cluster for encoding issues, character lookups, locale-sensitive cleanup, phone and email normalization, and text that must survive many systems.