# JSON to CSV Converter & Viewer > Instantly view JSON & CSV as tables. Convert JSON to CSV with nested flatten! Canonical page: [https://chrome-stats.com/d/com.manyulab.jsoncsvmaster](https://chrome-stats.com/d/com.manyulab.jsoncsvmaster) ## Overview - **ID:** `com.manyulab.jsoncsvmaster` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Manyu Lab LLC. - **Category:** PRODUCTIVITY - **Downloads:** 760 - **Version:** 1.8.3 - **Last updated:** 2026-09-12 - **First published:** 2025-10-28 - **Publisher country:** KR - **Size:** 11 MB - **Data as of:** 2026-09-16 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.manyulab.jsoncsvmaster) - **Website:** [https://hhtt.kr/](https://hhtt.kr/) - **Privacy policy:** [https://manyulab.github.io/policies/jsoncsvmaster/en/privacy.html](https://manyulab.github.io/policies/jsoncsvmaster/en/privacy.html) ## Description View, edit, and convert JSON and CSV files on mobile with ease!

JSON CSV Master is a lightweight yet powerful data productivity tool that instantly parses complex JSON and CSV files into clean, readable spreadsheet tables. Seamlessly convert between JSON and CSV with a single tap, flatten nested JSON objects, format minified code, and edit data on the go—built specifically for mobile developers, data analysts, QA engineers, and students.

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Key Features
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📊 1. Instant Tabular Grid Viewer (JSON & CSV)
• Renders JSON arrays and CSV files into clean, structured table rows and columns.
• Smooth horizontal and vertical scrolling allows effortless navigation through large datasets on your smartphone screen.
• Preserves the original JSON key order so your columns appear exactly as structured in the source file.
• For non-tabular or deeply unstructured objects, smoothly switch to the built-in code editor with a single tap.

🔄 2. Seamless Two-Way Conversion (JSON ↔ CSV)
• JSON to CSV: Convert JSON arrays into standardized CSV format in seconds.
• CSV to JSON: Convert comma-separated table rows back into structured JSON data effortlessly.
• Robust handling of commas, quotes, line breaks, and special characters with automated CSV escaping.

⚡ 3. Advanced Nested JSON Handling
Say goodbye to broken tables caused by nested hierarchies. Choose between two powerful parsing methods:
• Flatten with Dots: Transforms nested keys like {"user": {"name": "John"}} into dot-separated headers such as "user.name", neatly mapping all deep data into flat CSV columns.
• Keep Objects as Strings: Preserves nested objects or arrays as raw JSON strings inside individual cells, maintaining original schema integrity.

✏️ 4. Built-in Code Editor & JSON Prettifier
• View and edit both original source data and converted outputs directly within the app.
• Prettify Formatter: Beautify minified, single-line JSON files with clean indentation for effortless inspection.
• Search & Replace: Quickly find keywords with live highlights, jump between occurrences, and replace text in bulk.
• Developer-friendly controls: Line numbers, Jump to Line, Undo/Redo history, and font adjustments.
• Read-Only Lock Mode: Protect critical datasets from accidental touches and unintended edits.

📋 5. Fast Import & Direct Clipboard Paste
• Open Local Files: Easily import .json and .csv files from your device storage via the native Storage Access Framework.
• Paste from Clipboard: Quickly paste API payloads copied from web browsers, curl outputs, or messaging apps to view them in tabular format immediately.
• Built-in Sample Datasets: Explore sample files to quickly test flat tables, non-tabular objects, and nested conversions.

🔒 6. 100% Offline & Private On-Device Processing
• All parsing, conversion, and editing run entirely on your local device.
• No cloud uploads, no external server transfers, and no tracking. Confidential API tokens, test payloads, and proprietary customer data remain strictly private and secure.

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Who Is This App For?
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• Mobile & Web Developers checking REST/GraphQL API responses on the move.
• Data Analysts & Scientists who need to inspect CSV reports and JSON feeds quickly.
• QA Testers verifying data structures and edge-case payloads without needing a desktop.
• Computer Science Students learning data formats and data preprocessing.

Streamline your mobile data workflow today with JSON to CSV Converter & Viewer! ## Rankings - #1,245,482 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.FOREGROUND_SERVICE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.READ_MEDIA_AUDIO` - `android.permission.USE_BIOMETRIC` - `android.permission.USE_FINGERPRINT` - `android.permission.WAKE_LOCK` - `com.android.vending.CHECK_LICENSE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.AD_ID` - `com.manyulab.jsoncsvmaster.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [JsonToTable: JSON Viewer](https://chrome-stats.com/d/org.jsontotable.mobile) — 110 users - [JSON to CSV](https://chrome-stats.com/d/com.jsontocsv) — 14 users - [JSON Master: Editor & Viewer](https://chrome-stats.com/d/com.rkvpxdr.jsonmaster) — 28 users - [JSON to CSV Data Converter](https://chrome-stats.com/d/com.jsontocsvconverter.toolapp) — 26 users - [CSV Viewer-Chart & Analysis](https://chrome-stats.com/d/com.lfc.csvviewer) — 90 users - [CSV Viewer](https://chrome-stats.com/d/csv.viewer.reader) — 96 users - [CSV Viewer & Editor - CSVLab](https://chrome-stats.com/d/com.livinlabs.csvforge) — 9,372 users, 4.50 / 5 - [Open CSV — Viewer & Editor](https://chrome-stats.com/d/com.cosmovex.csvvedit) — 1,818 users - [JSON Viewer & Editor 2026](https://chrome-stats.com/d/com.prettyjson.android) — 441 users - [CSV Reader & CSV Viewer](https://chrome-stats.com/d/com.tlventures.csvreader) — 24 users - [CSV File Editor & Viewer](https://chrome-stats.com/d/com.tmr.csveditor) — 919 users - [CSV Viewer & Editor](https://chrome-stats.com/d/com.csv.viewer) — 1,497 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.manyulab.jsoncsvmaster)