BigJSON v0.5.0

Native builds for macOS (universal — Intel + Apple Silicon) and Windows (10/11, x64).

Both builds are unsigned:

• macOS — on first launch, right-click the app → Open, then confirm.
• Windows — if SmartScreen appears, click More info → Run anyway.

See the README for details.

BigJSON v0.3.0 (formerly Huge JSON Viewer)

BigJSON — Huge‑size JSON Viewer GUI · formerly Huge JSON Viewer.

This release renames the app to BigJSON to avoid a name clash — it's the same
free, open‑source viewer for very large JSON files on macOS, now under a new name.
The GitHub repo, download links, and package names are unchanged.

What's new in 0.3.0

• 🔤 Renamed to BigJSON (window title, app name, website and docs). App bundle
  id is now com.bigjson.viewer. All documentation notes formerly Huge JSON Viewer.

Everything BigJSON does (free)

• ⚡ Opens 2–3 GB JSON in ~3 s — memory‑mapped, streaming index, virtualized tree
• 🔍 Search keys and values — case / regex, live count, jump‑to‑match
• 📤 Convert JSON → CSV / XML — streaming, works on multi‑GB files
• 🔗 Union multiple files — browse several JSON files as one searchable tree
• 🌍 20‑language UI (RTL‑aware) · 🔒 100% offline · 🆓 MIT · commercial use free

A free alternative to Dadroit's paid tiers (matches everything except literal 1 TB files).

Install

1. Download BigJSON_0.3.0_universal.dmg below and open it.
2. Drag BigJSON into Applications.
3. First launch: the app is unsigned, so right‑click the app → Open, then confirm (once).

Universal — Apple Silicon (M1–M4) and Intel · macOS 11+ · handles JSON up to 4 GB.
Website: https://bandusix.github.io/huge-json-viewer/ · Changelog

Huge JSON Viewer v0.2.0 — CSV/XML export + multi-file union

Free parity with the features Dadroit charges for — a no-cost, open-source
viewer for very large JSON files on macOS.

New in 0.2.0

• 📤 Convert JSON → CSV — export the whole document or a selected node. An
  array of objects becomes a spreadsheet (auto-discovered columns, RFC-4180
  quoting, Excel BOM/CRLF, formula-injection guard, full-precision numbers).
  Streams multi-GB files with bounded memory (2,000,000 rows → 246 MB in ~3.5 s).
• 📤 Convert JSON → XML — valid XML 1.0 output with element-name sanitization.
• 🔗 Union multiple files — open several JSON files at once as one combined,
  searchable tree, each labeled by filename. Search / breadcrumb / export work
  across the union.
• 🆓 Commercial use is free (MIT) — nothing to license.

Plus fixes for 9 correctness edge cases found by an adversarial code review
(XML name validation, UTF-8-safe truncation, full number fidelity, temp/partial
file cleanup, and more). See the CHANGELOG.

Still in the box

Opens 2–3 GB JSON in ~3 s · search keys and values (regex) · virtualized
syntax-highlighted tree · 20-language UI (RTL-aware) · 100% offline · 2 MB app.

Install

1. Download Huge JSON Viewer_0.2.0_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 (once).

Universal build — Apple Silicon (M1–M4) and Intel. macOS 11+. Handles JSON up to 4 GB.

Matches every Dadroit paid tier except literal 1 TB files (that needs an on-disk
index and remains out of scope). Everything else is free, forever.

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.