BYOT Coding Agent vs JSON DevKit Editor

BYOT is a native client for OpenCode, the open-source coding agent. Connect to the OpenCode server running on your own computer and drive coding sessions from your iPhone or iPad. Browse projects and sessions, send prompts with photos or files, and watch assistant text, reasoning, and tool activity stream live. Inspect tool inputs, progress, output, and errors. Answer permission requests and questions from your server, queue follow-up prompts, and choose models from your server's catalog. Review session diffs when your server supports them. Switch between saved servers, group sessions by project or browse them in one list, and find sessions by title, project, or path. Unsent text and attachments stay on this iPhone across session changes and app relaunches. Choose System, Light, or Dark appearance. With the optional BYOT companion running on your computer, get notifications for approvals, questions, completed turns, and errors. Enable the computer queue to keep accepted prompts running in order while BYOT is closed. Your computer must remain awake and the companion connected. Work that has not finished uploading needs BYOT to reconnect; uncertain delivery requires your review. BYOT supports OpenCode 1 and OpenCode 2 beta servers with automatic protocol detection. Available features depend on the server version; some OpenCode 2 beta servers do not expose per-session diffs. Your server does the work. BYOT renders its responses and sends your instructions over HTTPS. There is no BYOT account or sign-up, and BYOT has no analytics or tracking. Server passwords are stored in the iOS Keychain. In direct mode, prompts and attachments go to your configured server and the model providers you enable there. Optional notifications and the computer queue use the BYOT relay for device registration, delivery, and encrypted queued content. See the privacy policy for storage and retention details. Requires an OpenCode server you operate, reachable over HTTPS, for example through Tailscale. Notifications and the computer queue also require the BYOT companion. BYOT is an independent client and is not affiliated with the OpenCode project.

JSON DevKit is a JSON workbench for iPhone and iPad. View, edit, format, validate, convert, and compare JSON in one place—built for developers, QA engineers, and API testers who need fast answers on mobile. CORE WORKFLOW • Open JSON from the editor, clipboard, files, or a URL • Pretty-print or minify with syntax highlighting and line numbers • Explore structure in tree view or flatten nested data into a table • Run JSONPath queries and inspect matched results • Generate and validate JSON Schema • Compare two JSON documents with a synced side-by-side diff • Convert JSON to CSV, TSV, XML, YAML, TOML, TOON, Markdown table, HTML, or Base64 • Generate model stubs for Swift, Kotlin, TypeScript, Dart, Java, Python, and C# BUILT FOR REAL WORK • Multi-tab workbench keeps source and output snapshots as you switch tools • Large payloads are processed off the main thread with progress feedback • iPhone and iPad layouts adapt to your device—same tools, optimized navigation • Recent history helps you return to earlier documents quickly PRIVACY BY DESIGN • All JSON processing happens on your device • No account required to use core features • Firebase Analytics (Google) collects anonymous usage events only—no JSON content or ad identifiers • No ads, no subscriptions, and no in-app purchases. All tools are included. • Your data stays local unless you explicitly copy, share, or export it Whether you are debugging an API response, checking a config file, or converting JSON for a report, JSON DevKit keeps the workflow focused and fast.