HTML Viewer vs Hex Editor

The HTML viewer and editor for iPhone and iPad. Write, preview and debug HTML, CSS and JavaScript, sync your projects with iCloud and edit files right on your server. No computer needed. Type and watch your page update live, test it on phone, tablet and desktop sizes, then fix problems with real DevTools and one-tap tools. FREE FOR EVERYONE • Code editor with syntax highlighting • Live preview, side by side with your code in Split view • 3 projects, plus any file you open from Files or share from another app • 80+ templates: full-screen games, daily-life mini apps and websites • Favorites and tags to keep your projects organised • Your Activity: your whole year of coding at a glance • Open URL: load any website, view its source and save it as a project • Learn: a free HTML, CSS and JavaScript course in every app language, with quizzes, challenges, a certificate and an optional daily reminder • Try autocomplete, code formatting and find & replace for free • 20+ everyday tools: colour picker, contrast checker, QR codes, regex tester and more • Light and dark editor themes and 10 fonts • Widgets, Siri, Shortcuts, Spotlight and Control Center • No ads GO PRO FOR THE FULL TOOLKIT • Unlimited projects and tabs, with the Files sidebar for every file in a project • Open a folder from Files and edit it in place • Sync projects between iPhone and iPad with iCloud • A built-in SSH terminal, plus SFTP and FTP to edit files on your server • Console, Network, Elements and Storage DevTools for your page or any website • Autocomplete for tags, classes, CSS properties and file paths, plus the full symbol row • Format code exactly the way you like it • Line numbers, page guide and other editor display options • Device frames: iPhone, iPad and desktop sizes • 50 tools: SEO, accessibility and performance audits with one-tap fixes, Colour Studio, Image Studio with background removal • Local Web Server: open your page on any device on your Wi-Fi with a QR code • Export as ZIP, PDF or a single file, and share your projects • Every theme and font, and new app icons to choose from MADE FOR iPHONE AND iPAD • iPad layout with a tab bar, project grid and keyboard shortcuts • Made for iPhone Duo, folded or open • Run your page full screen, with a Focus mode that hides everything else • Customise the editor, keyboard, preview and more in Settings • Preview Markdown and JSON as well as HTML • Archive keeps deleted files for 30 days • Editing and preview work offline • Available in 33 languages WHO IT'S FOR Students learning to code, hobbyists building small sites and games, and developers who need to fix a page or a server file away from their desk. PRO PLANS Choose an auto-renewing subscription or a one-time Lifetime purchase. A free trial may be available on subscriptions for new subscribers. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Payment is charged to your Apple ID at confirmation of purchase. Lifetime is a single payment with no renewal. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://attractive-basket-ce6.notion.site/Privacy-Policy-Html-Editor-30d5cd442d3280b49b72e9a2436c853e

"Hex Editor is built around precise hexadecimal editing rather than treating file inspection as an afterthought. Core search language includes hex editor, binary editor, hexadecimal editor, binary file, byte editor. Open a file, move through its byte data, search for a value or text sequence, copy what you need, change the required bytes, and save the result. Use the editor when a normal document viewer cannot show the actual bytes stored inside a file. Byte-level searching helps locate known signatures, strings, offsets, markers, or values without manually scanning an entire file. File Info gives you a quick view of basic file details before you begin deeper inspection. File Type Detector helps identify a file from its content when the extension is missing, unusual, or not enough for your workflow. Metadata Inspector provides another layer of context for understanding information carried by a file. Bit Inspector lets you move below the byte level and examine individual bits when binary representation matters. Hex Calculator is useful for hexadecimal arithmetic, offsets, values, and other low-level calculations. Byte Converter provides quick conversions when you need to move between byte-oriented values while analysing data. Text-Hex connects readable text with hexadecimal representation so you can investigate how characters appear in raw data. Encoding Converter helps you inspect data across supported character encodings instead of guessing how a byte sequence should be interpreted. Base64 Converter gives you a dedicated way to encode or decode Base64 data during technical investigations. String Scanner helps reveal readable text embedded inside binary content and can speed up an initial inspection. Hash Generator provides hashes for data checks and technical workflows where a repeatable fingerprint is useful. Checksum Tool supports checksum-oriented verification when you need to compare calculated values with expected data. Compare Files helps you identify differences between two files instead of relying on visual inspection alone. Entropy Analyzer provides a statistical view that can help you recognise changes in data characteristics across binary content. Byte Statistics summarises byte-level patterns so you can understand data distribution without reading every value individually. These tools work together for reverse engineering workflows, debugging, file inspection, data recovery preparation, protocol investigation, and general developer work. Hex Editor can also be useful when you need to confirm a small binary change, investigate an unknown file, or validate data before moving it elsewhere. Import your file into the toolkit, inspect the relevant region, make only the required edit, then save the resulting file for your next step. The app keeps common binary utilities close to the editor so you can move from editing to analysis without changing applications. Search, copy, inspect, convert, compare, calculate, and analyse from one mobile workspace. Free access provides limited usage, while Pro is designed for users who need unlimited Hex editing. Hex Editor does not replace specialised forensic or reverse-engineering suites; it provides a practical mobile toolkit for everyday hexadecimal and binary work. Use the editor for focused byte changes and use the supporting tools when the surrounding data needs more context. Whether you are checking a binary structure, looking for a string, comparing versions, or validating a checksum, the workflow stays centred on the file data itself. The interface is designed for direct access to low-level information without requiring a separate desktop utility for every small inspection task. Use it when a binary file needs a small, deliberate change rather than a complete rewrite. Inspect hexadecimal offsets when you need to understand where a value occurs in a file. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/"