Huge JSON Viewer v0.1.0 — free large JSON viewer for macOS

A free, open-source viewer for very large JSON files on macOS — open and search
multi-gigabyte (2–3 GB) JSON in seconds, without your text editor freezing or crashing.
A native, no-cost alternative to paid large‑JSON tools like Dadroit.

Highlights

• ⚡ Opens 2–3 GB JSON in ~3 seconds — memory‑mapped, uses only ~1.5–2× the file size in RAM (not 7×)
• 🔍 Search keys and values with case / regex, live match count, and jump‑to‑match that auto‑expands the path
• 🌳 Virtualized, syntax‑highlighted tree with a line‑number gutter (Dadroit / jsonviewer.app style)
• 🌍 20‑language UI, right‑to‑left aware (Arabic, Urdu, Punjabi)
• 🖥️ Universal build — Apple Silicon (M1–M4) and Intel
• 🔒 100% offline — no upload, no server, no telemetry · 2 MB app
• 🆓 MIT licensed

Install

1. Download Huge JSON Viewer_0.1.0_universal.dmg below and open it.
2. Drag Huge JSON Viewer into Applications.
3. First launch: the app is unsigned, so right‑click the app → Open, then confirm (only needed once).

Requirements

macOS 11 (Big Sur) or newer · Apple Silicon or Intel · handles JSON files up to 4 GB.

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🌍 Available in 12 languages — see the README.