Numbers-LE: Zero Hassle Number Extraction

Instantly extract every numeric value in precise order
JSON, YAML, CSV, TOML, INI, ENV

Screenshot Guide

🙏 Thank You!

Thank you for your interest in Numbers-LE! If this extension has been helpful in managing your number extraction needs, please consider leaving a rating on VS Code Marketplace and Open VSX. Your feedback helps other developers discover this tool and motivates continued development.

⭐ Star this repository to get notified about updates and new features!

🚀 More from the LE Family

Numbers-LE is part of a growing family of developer tools designed to make your workflow effortless:

• Strings-LE - Extract every user-visible string from JSON, YAML, CSV, TOML, INI, and .env files with zero hassle
  [VS Code Marketplace] [Open VSX]

• EnvSync-LE - Effortlessly detect, compare, and synchronize .env files across your workspace with visual diffs
  [VS Code Marketplace] [Open VSX]

• Colors-LE - Extract and analyze colors from CSS, HTML, JavaScript, and more
  Coming October 2025

• Dates-LE - Extract and analyze dates from logs, APIs, and temporal data
  Coming October 2025

• Paths-LE - Extract and analyze file paths from imports, configs, and dependencies
  Coming October 2025

• URLs-LE - Extract and analyze URLs from web content, APIs, and resources
  Coming October 2025

Each tool follows the same philosophy: Zero Hassle, Maximum Productivity.

✅ Why Numbers-LE

Modern projects contain numeric data everywhere — APIs, configs, CSVs, and data files across both native and web. Extracting and analyzing those numbers is still a slow, manual process.

Numbers-LE makes number extraction effortless.
It smartly pulls out only the true numeric values (integers, floats, percentages, currencies) and gives you clean, ordered data ready for analysis.

• Data analysis without the hassle
  Instantly extract and analyze numeric data from any structured file. Get statistical insights, trends, and patterns in seconds.

• Validation across configs & APIs
  Surface every numeric value for validation, range checking, and data integrity verification.

• Confident edits in complex datasets
  Flatten nested numbers into a simple list you can safely analyze without breaking structure or formatting.

• Stream massive datasets
  Work with millions of rows without locking up VS Code. Select only the columns you need and stream results directly to the editor.

• Statistical analysis built-in

  • Basic stats - count, sum, average, min, max, median, mode
  • Advanced analysis - range, variance, standard deviation
  • Data insights - outliers, trends, patterns

• Automatic cleanup built-in

  • Sort for stable analysis and reviews
  • Dedupe to eliminate noise
  • Filter by ranges or conditions

• Fast at any scale
  Benchmarked for millions of numbers per second, Numbers-LE keeps up with large datasets and enterprise monorepos without slowing you down.

💡 Use Cases & Examples

Financial Data Analysis

Extract and analyze financial metrics from API responses:

// Extract from financial-data.json
{
  "revenue": 1250000.5,
  "profit": 250000.75,
  "margin": 20.0,
  "growth_rate": 15.5
}

Configuration Validation

Validate numeric settings across configuration files:

# Extract from config.yaml
database:
  max_connections: 100
  timeout: 30
  retry_attempts: 3

cache:
  ttl: 3600
  max_size: 1000

Performance Metrics Analysis

Extract performance data from monitoring systems:

// Extract from metrics.csv
timestamp,cpu_usage,memory_usage,response_time
2023-12-25T10:00:00Z,45.2,78.5,120.3
2023-12-25T10:01:00Z,52.1,82.3,135.7

Statistical Analysis

Perform statistical analysis on extracted numbers to identify trends, outliers, and patterns in your data.

🚀 Quick Start

1. Install from VS Code Marketplace or Open VSX
2. Open any supported file type (Cmd/Ctrl + P → search for "Numbers-LE")
3. Run Quick Extract (Cmd+Alt+N / Ctrl+Alt+N / Status Bar)

⚙️ Configuration

• numbers-le.openResultsSideBySide – Open to the side
• numbers-le.csv.streamingEnabled – Toggle CSV streaming
• numbers-le.dedupeEnabled – Auto-dedupe numbers
• numbers-le.sortEnabled – Auto-sort output
• numbers-le.analysis.enabled – Enable statistical analysis
• numbers-le.analysis.includeStats – Include detailed statistics
• Safety Guards – File size warnings & thresholds
• Notification Levels – Control verbosity and alerts

⚡ Performance

Numbers-LE is built for speed across all supported formats:

Performance Notes

• Memory Usage: ~100MB base + 3MB per 1000 numbers processed
• Large Files: Files over 100MB may show reduced throughput (100K-500K numbers/sec)
• CSV Streaming: Enables processing of files up to 500MB without memory issues
• Statistical Analysis: Adds 30-50% processing time when enabled
• Hardware Requirements: Minimum 4GB RAM, recommended 8GB+ for large datasets

🧩 System Requirements

• VS Code: 1.105.0 or higher
• Node.js: Not required (extension runs in VS Code's built-in runtime)
• Platform: Windows, macOS, Linux
• Memory: 100MB minimum, 500MB recommended for large datasets
• Storage: 20MB for extension files

🔒 Privacy & Telemetry

• Runs entirely locally; no data is sent off your machine.
• Optional local-only logs can be enabled with numbers-le.telemetryEnabled.
• Logs appear in Output panel → "Numbers-LE".

🌍 Language Support

• English - Full support
• Additional languages - Coming soon

Interested in helping translate Numbers-LE? Open an issue to contribute!

🔧 Troubleshooting

Common Issues

Extension not detecting numbers

• Ensure file is saved and has a supported extension (.json, .yaml, .csv, .toml, .ini, .env)
• Check that numbers-le.analysis.enabled is set to true in settings
• Try reloading VS Code window (Ctrl/Cmd + Shift + P → "Developer: Reload Window")

Performance issues with large files

• Files over 50MB may take longer to process
• Enable numbers-le.csv.streamingEnabled: true for CSV files
• Consider using numbers-le.dedupeEnabled: false to reduce processing time
• Disable numbers-le.analysis.includeStats: false for faster extraction

Numbers not appearing in results

• Verify the number format is supported (integers, floats, percentages, currencies)
• Check if numbers are inside strings or comments
• Ensure numbers are not part of identifiers or variable names
• Check for proper number formatting (e.g., "1,000" vs "1000")

CSV streaming issues

• Ensure CSV has proper headers for column selection
• Check that numbers-le.csv.streamingEnabled is enabled
• Verify CSV delimiter is standard (comma, semicolon, tab)
• Large CSV files may require streaming to avoid memory issues

Statistical analysis problems

• Enable numbers-le.analysis.enabled: true for statistical insights
• Check that numbers-le.analysis.includeStats: true is set
• Some statistical calculations may fail with insufficient data
• Outlier detection requires minimum data points

Extension crashes or freezes

• Check VS Code version compatibility (requires 1.85.0+)
• Disable other number-related extensions temporarily
• Check Output panel → "Numbers-LE" for error messages
• Consider reducing file size or using streaming mode

Getting Help

• Check the Issues page for known problems
• Enable telemetry logging: numbers-le.telemetryEnabled: true
• Review logs in Output panel → "Numbers-LE"

❓ FAQ

Q: What types of numbers are extracted? A: Numbers-LE extracts integers, floats, percentages, currencies, and other numeric values while excluding numbers that are part of identifiers or variable names.

Q: Can I get statistical analysis of the numbers? A: Yes, enable numbers-le.analysis.enabled: true to get basic stats (count, sum, average, min, max) and advanced analysis (variance, standard deviation, outliers).

Q: How does CSV streaming work? A: When numbers-le.csv.streamingEnabled: true is enabled, large CSV files are processed in chunks to avoid memory issues. You can select specific columns for extraction.

Q: Can I automatically deduplicate numbers? A: Yes, enable numbers-le.dedupeEnabled: true to automatically remove duplicate numbers from the results.

Q: How does sorting work? A: Enable numbers-le.sortEnabled: true to automatically sort numbers in ascending order. This helps with analysis and review processes.

Q: What's the largest file size supported? A: Numbers-LE can handle files up to 500MB with CSV streaming enabled. For other formats, the limit is around 200MB for optimal performance.

📊 Test Coverage

• 100% unit coverage on pure extraction and analysis
• Contract tests for configuration side-effects and parse-error handling
• Data-driven fixtures with golden expected outputs per format
• CSV streaming paths covered (batching, header/column selection)
• Stable numeric sorting and analysis normalization in harness

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@nolindnaidoo. All rights reserved.