TXT to JSON Converter

Convert Text File to JSON in Seconds - Withdata DataFileConverter

No coding required. Convert structured/delimited/key-value/log TXT files to standard JSON/JSON Lines. Fix encoding issues, process 10GB+ files, and batch convert hundreds of files — all locally on your machine.

📦 Batch Convert TXT Files
📈 10GB+ Large File Support
🖥️ Cross-Platform (Win/macOS/Linux)
See How to Convert TXT to JSON Free Trial Download - DataFileConverter

3 Conversion Modes to Fit Your Needs

📄

Convert single TXT file to JSON file

Convert individual TXT files to standalone JSON files with full control over schema, encoding, and formatting. Ideal for one-off conversions and custom JSON structure requirements.

🔗

Convert multiple TXT files into one JSON

Merge content from multiple TXT files into a single JSON array or object. Combine related data files while maintaining consistent structure and data types across all sources.

📦

Batch convert TXT files to JSON files

Convert hundreds of TXT files to JSON in bulk with a single click. Preserve folder structure, apply global conversion rules, and generate detailed conversion reports with error tracking.

4 Simple Steps to Convert TXT to JSON

1

Select TXT Folder(Files)

Choose folder containing text files and set file type filter.

TXT Folder: /data/logs/ | Filter: *.txt
2

Configure Conversion Rules

Set parsing rules: delimiters (comma/tab/custom), encoding (UTF-8/GBK/ANSI/ISO-8859-1), and heading.

Delimiter: Tab | Encoding: UTF-8 | Heading: Yes
3

Customize JSON Output

Configure JSON structure: Output folder, JSON file encoding and output format (standard JSON/JSON Array/JSON Lines).

Output: /json/output/ | Format: JSON Lines | Encoding: UTF-8
3

Convert & Validate

One-click conversion with real-time progress tracking. Automatically validate JSON syntax, generate error reports with line numbers, and fix common JSON formatting issues with one click.

Conversion: 245 files | Errors: 0

Powerful Features for TXT to JSON Conversion

📁 Multi-Type TXT Parsing

  • Delimited text (comma/tab/pipe/custom separators)
  • Key-value pairs (key=value, key:value, key;value)
  • Line-based log files (server logs, application logs)
  • Nested configuration files (.ini, .conf)

High Performance Processing

  • Stream processing for 10GB+ large files (no memory overflow)
  • Folder scanning for bulk conversion
  • Detailed conversion logs and error reporting

JSON Validation & Fix

  • Line number referencing for error debugging
  • Support for standard JSON and JSON Lines formats
  • Compliance with JSON RFC 8259 standards

🔤 Encoding Conversion

  • Auto-detect TXT encoding (UTF-8/GBK/ANSI/ISO-8859-1)
  • Fix garbled non-English characters (Chinese/Russian/Japanese)
  • Preserve special characters and emojis in JSON output

🖥️ Cross-Platform & Automation

  • Windows (10/11/Server), macOS (10.15+), Linux (all distros)
  • GUI for non-technical users + CLI for automation
  • No dependencies (self-contained application)
  • Schedule automated conversions (Crontab/Task Scheduler)

Common Use Cases

Log File Analysis

Convert server/application TXT logs to JSON format for analysis with ELK Stack, Splunk, or other log analytics tools.

Configuration File Conversion

Convert legacy .ini/.conf TXT configuration files to JSON format for modern application deployment and management.

Data Migration

Convert legacy TXT data files to JSON for integration with modern APIs, databases, and cloud services.

Batch Data Processing

Process hundreds of delimited TXT reports into structured JSON for frontend/mobile application integration.

Automated Data Pipelines

Use CLI mode to schedule automated TXT to JSON conversions for continuous data synchronization.

Data Validation

Validate and clean TXT data by converting to structured JSON with built-in syntax checking and error fixing.

Frequently Asked Questions

Can I convert 10GB+ log files to JSON without memory issues?

Yes! The tool uses stream processing to parse large files. This prevents memory overflow and allows processing of files larger than available RAM. Progress is tracked in real-time.

What's the difference between merge mode and batch mode?

Merge mode combines content from multiple TXT files into a single JSON file (usually as an array of objects). Batch mode converts each TXT file to its own corresponding JSON file (one-to-one conversion) while preserving the original folder structure. Choose merge for data aggregation and batch for bulk one-to-one conversion.

How to fix garbled non-English characters in conversion?

The tool automatically detects the original encoding of TXT files (ANSI/UTF-8/Unicode GE/Unicode LE/ISO-8859-1/GBK). You can also manually select the source encoding and preview the results before conversion. The built-in encoding conversion engine ensures Chinese/Russian/Japanese characters are preserved without garbling in JSON output.

Does it support CLI for automation on Linux/Windows?

Yes! The CLI mode supports all features available in the GUI, including batch conversion, encoding configuration, and large file processing. You can create scripts for scheduled conversions using Crontab (Linux/macOS) or Task Scheduler (Windows).

Is my data secure with this tool?

100% secure. All conversion processing happens locally on your machine — no TXT files or JSON output are ever sent to external servers. This makes the tool ideal for processing sensitive log files, configuration data, and business records that cannot be uploaded to online conversion tools.

Ready to Convert TXT to JSON Effortlessly?

Download the free 30-day trial and experience fast, secure, and flexible TXT to JSON conversion with no limitations. No registration required, and 100% local processing.

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