The Ultimate Developer Toolkit

All-in-one toolkit for developers and creators. Image processing, security tools, text utilities, and document conversion—all in one place. Fast, secure, and completely free. No sign-up required.

Only Tools Learn More

What's New Today

New
New

UX & Compact Design Update

A major update to our tools interface, focusing on a more compact layout, improved navigation, and enhanced user experience across all devices.

Try Now

Audio Resampler

Change audio sample rate - upsample for quality or downsample to reduce file size. Supports all major audio formats.

Try Now

CSV <-> Excel Converter

Convert spreadsheets between CSV and Excel formats instantly.

Try Now

Why htcUtils?

Built for developers and power users who value privacy and speed. Over 20+ professional tools at your fingertips.

100% Private

Mostly everything runs locally in your browser via JavaScript. Your files and data never leave your device in most of the tools.

Lightning Fast

No server round-trips means instant processing. Convert, compress, and generate in milliseconds.

Free to Start

Many tools are completely free with no limits. Advanced features available with subscription plans for power users.

Popular Tool Categories

Image Tools

Professional grade compression and format conversion.

Image to PDF Converter New
Metadata and EXIF Checker
QR Code Generator
Favicon Generator
View All Image Tools

Security Tools

Generate strong passwords and check security strength.

File Security Checker New
Encoder & Decoder
Password Hash Generator
Password Checker
View All Security Tools

Text Utilities

Format JSON, compare text, convert cases, and more.

CSV <-> Excel Converter New
PDF to Image Converter
Regex Debugger
PDF Compressor
View All Text Tools

Audio Tools

Check metadata, analyze audio files, and more.

Audio Resampler New
Audio Splitter
Audio Metadata Checker
View All Audio Tools

AI-Powered Tools

Advanced AI features powered by cutting-edge technology

Login Required

Please login to access our AI-powered features. Create a free account to unlock speech-to-text, AI writing assistants, and more advanced tools.

Login Sign Up

Speech to Text

Convert your speech to text instantly using AI-powered voice recognition. Free online speech-to-text tool with real-time transcription. Works in your browser – no uploads required.

Login to Access

Text to Speech

Convert text into natural-sounding speech using AI-powered voice synthesis. Free online text-to-speech tool with multiple language and voice options.

Login to Access

Document Text Extraction

Extract text from PDFs, images, and documents using Azure Document Intelligence. AI-powered OCR for accurate text extraction from scanned documents, invoices, forms, and more.

Login to Access

PII Redaction

Automatically redact sensitive information from documents using AI. Remove names, addresses, dates of birth, IP addresses, secret keys, and custom PII from PDFs, Excel files, and Markdown documents. Powered by Azure OpenAI GPT-4 for accurate privacy protection.

Login to Access

Latest Blog Posts

Tips, tutorials, and insights for developers

View All Posts

Latest Updates & Changelog

Stay up to date with our latest features, improvements, and new tools

Design Update

UX & Compact Design Update

A major update to our tools interface, focusing on a more compact layout, improved navigation, and enhanced user experience across all devices.

  • More compact tool cards for better information density
  • Improved visual hierarchy and readability
  • Mobile-optimized scaling and touch targets
  • Enhanced accessibility and contrast
  • Smoother transitions and faster loading
Try Now
New Tool

Audio Resampler Tool

Change audio sample rate for quality enhancement or file size reduction. Upsample to high-resolution formats (48kHz, 96kHz, 192kHz) or downsample for smaller files (8kHz, 16kHz, 22kHz). Supports MP3, WAV, FLAC, M4A, OGG, AAC, and WMA formats.

  • Toggle between upsample and downsample modes
  • Upsample: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz
  • Downsample: 8kHz, 16kHz, 22kHz, 32kHz, 44.1kHz
  • Automatic bitrate optimization based on sample rate
  • Support for MP3, WAV, FLAC, M4A, OGG, AAC, WMA
  • Professional FFmpeg-powered processing
  • Secure server-side processing with instant download
  • Modern UI with drag-and-drop support
Try Now
New Tool

CSV <-> Excel Converter Tool

Convert between CSV and Excel formats instantly.

We have added a new robust converter for spreadsheets. Easily convert CSV files to Excel (.xlsx) and vice versa with high accuracy.

  • Two-way conversion (CSV <-> Excel)
  • Supports large files
  • Secure server-side processing
  • Instant download
Try Now
New Tool

Audio Splitter Tool

Split audio files into smaller chunks by duration, quantity, or manual selection. Define custom segments with start/end times and preview them instantly. Supports MP3, WAV, FLAC, M4A, OGG, AAC, and WMA formats.

  • Manual segment definition: start/end times with precision
  • Instant segment preview before splitting
  • Auto-split by duration (e.g., 30s chunks)
  • Auto-split by quantity (e.g., 5 equal parts)
  • Support for MP3, WAV, FLAC, M4A, OGG, AAC, WMA
  • Secure server-side processing with ZIP archive download
  • Clean and modern UI with drag-and-drop support
Try Now
New Tool

PDF to Image Converter Tool

Convert PDF pages to high-quality images with page management features. Rearrange pages by dragging, remove unwanted pages, and download all images as a ZIP file. Perfect for extracting pages from PDFs as images for presentations, documents, or web use.

  • Convert PDF pages to high-quality images
  • Rearrange pages by dragging and dropping
  • Remove unwanted pages before conversion
  • Download all images as a ZIP file
  • Support for PNG and JPG image formats
  • Maintains original image quality and resolution
  • Perfect for extracting pages from PDFs as images
  • Batch processing: convert multiple pages at once
  • Fast server-side conversion
  • Secure file processing with automatic cleanup
Try Now
New Tool

Audio Metadata Checker Tool

Check and view all metadata from audio files. View ID3 tags including title, artist, album, genre, year, track number, and more. See technical information like bitrate, sample rate, channels, duration, and codec. Supports MP3, MP4, M4A, FLAC, OGG, WAV, AAC, and WMA formats.

  • View ID3 tags: title, artist, album, genre, year, track number
  • Technical information: bitrate, sample rate, channels, duration, codec
  • Support for MP3, MP4, M4A, FLAC, OGG, WAV, AAC, and WMA formats
  • Export metadata as JSON for further analysis
  • Perfect for organizing music libraries and verifying file information
  • View all metadata tags including custom fields
  • Secure processing with automatic file cleanup
  • Fast metadata extraction from audio files
  • Comprehensive audio file analysis
  • Easy-to-read metadata display
Try Now
New Tool

Image to PDF Converter Tool

Convert multiple images into a single PDF file. Upload one or more images (JPG, PNG, WebP, etc.) and create a PDF where each image becomes a separate page. Perfect for creating PDFs from photos, scans, or screenshots. Maintains original image quality and supports batch processing.

  • Convert multiple images to a single PDF file
  • Each uploaded image becomes a separate page in the PDF
  • Support for JPG, PNG, WebP, GIF, BMP, and other common formats
  • Maintains original image quality and resolution
  • Batch processing: upload and convert multiple images at once
  • Fast server-side conversion
  • Download your PDF instantly
  • Perfect for creating PDFs from photos, scans, or screenshots
  • Preserves image orientation and aspect ratio
  • Secure file processing with automatic cleanup
Try Now
New Tool

Regex Debugger & Explainer Tool

Test and debug regular expressions in real-time. See matches, groups, and explanations instantly. Visual highlighting, preset patterns for common use cases (emails, URLs, dates, phone numbers, etc.), and full regex flag support. Perfect for developers, data analysts, and anyone working with pattern matching. 100% client-side processing for privacy and speed.

  • Real-time regex testing with instant results
  • Visual highlighting of all matches in test string
  • Detailed match information including groups and positions
  • Preset regex patterns for common use cases (email, URL, phone, date, etc.)
  • Full regex flag support (global, case-insensitive, multiline, dot-all, unicode, sticky)
  • Pattern explanation to help understand regex components
  • Match statistics: total matches, groups, first/last match positions
  • 100% client-side processing - no data sent to servers
  • Privacy-focused: all processing happens in your browser
  • Perfect for developers, data analysts, and text processing tasks
Try Now
New Tool

Metadata and EXIF Checker

Check and view all metadata and EXIF data from images. View camera settings, location data, timestamps, and other hidden information. Remove EXIF data and metadata for privacy protection before sharing images.

  • View all EXIF data from images (camera settings, location, timestamps, etc.)
  • View metadata including file info, color profiles, and image properties
  • Remove EXIF data and metadata for privacy protection
  • Download cleaned images without metadata
  • Support for JPEG, PNG, WebP, and other common formats
  • Privacy-focused: protect your location and personal information
  • Perfect for cleaning images before sharing online
  • Detailed metadata display with organized sections
  • One-click metadata removal
  • Secure server-side processing
Try Now
New Tool

PDF Compressor

Compress PDF files to reduce file size while maintaining quality. Multiple compression levels available from maximum compression (screen quality) to high quality (print quality). Perfect for reducing PDF size for email attachments, web uploads, and storage optimization.

  • Multiple compression levels: Maximum (screen), High (ebook), Medium (print), Low (prepress)
  • Reduce PDF file size by up to 90% while maintaining readability
  • Powered by Ghostscript for professional PDF optimization
  • Fast server-side processing with automatic file cleanup
  • Supports files up to 100MB
  • Download compressed PDF instantly
Try Now
New Tool

PII Redaction Tool with AI

Automatically redact sensitive information from documents using Microsoft Azure AI services. Compliant with Azure ISO 27001 information security standards. Remove names, addresses, dates of birth, IP addresses, secret keys, emails, phone numbers, SSN, credit card numbers, and custom PII from PDFs, Excel files, Markdown documents, and plain text. Features monthly usage limits, automatic refunds on failures, and semantic text correction for better accuracy.

  • AI-powered PII redaction using Microsoft Azure AI services
  • ISO 27001 compliant - Azure information security standards
  • Support for multiple file formats (PDF, Excel, Markdown, TXT)
  • Preset PII types: name, age, DOB, address, IP, secret key, email, phone, SSN, credit card
  • Custom PII keys support for additional sensitive information
  • Semantic text correction to fix spacing errors before redaction
  • Multiple file and text input support with ordered processing
  • Monthly limit: 50 documents per month for free users (unlimited for pro)
  • File size limits: 50MB per file, 200MB total for all files
  • Text input: up to 5,000 words per field
  • Automatic refund on failed processing
  • Real-time usage limit display with progress bar
  • Individual and batch result download
  • Privacy-focused: sensitive data replaced with black spaces
Try Now
New Tool

Merge PDF Tool

Merge multiple PDF files into a single document. Combine PDFs in any order with drag-and-drop interface. Perfect for combining documents, reports, and organizing multiple PDFs into one file.

  • Merge up to 50 PDF files into a single document
  • Reorder files with drag-and-drop or up/down arrows
  • Handle large files up to 100MB each
  • Secure server-side processing with automatic file deletion
  • Download or preview merged PDF
Try Now
New Tool

File Content vs Extension Validator

Validate file content matches its extension and verify file integrity. Detect disguised files, corrupted files, and security threats. Perfect for security audits, file upload validation, and ensuring file authenticity.

  • Detect real file type vs extension mismatch (magic number detection)
  • Verify file integrity for PDFs, images, and ZIP-based formats
  • Optional malware scanning with ClamAV integration
  • SHA256 hash generation for file verification
  • Comprehensive validation report with detailed file information
  • Supports all common file types including images, documents, archives, and executables
Try Now
New Tool

PDF Splitter with Preview

Split PDF files into multiple documents with page range selection and inline preview functionality. Perfect for organizing large documents.

Try Now
New Tool

Document Text Extraction with AI

Powered by Azure Document Intelligence, extract text from PDFs, images, and scanned documents with high accuracy OCR capabilities.

Try Now
New Tool

PDF ↔ DOC Converter Tool

Introducing our new bidirectional PDF and DOC/DOCX converter. Convert PDF files to Word documents or Word documents to PDF with preserved formatting. Features include inline preview, zoom controls, and support for files up to 200MB.

  • Bidirectional conversion (PDF to DOCX and DOCX to PDF)
  • Inline preview with zoom controls for both input and output files
  • Client-side DOCX preview using docx-preview library
  • Enhanced table detection and formatting preservation
Try Now
Security Update

Enhanced CSRF Protection

We've implemented comprehensive Cross-Site Request Forgery (CSRF) protection across all AJAX requests and form submissions. All POST, PUT, DELETE, and PATCH requests now automatically include CSRF tokens for enhanced security. This protects against unauthorized actions and improves overall site security.

  • Automatic CSRF token handling for all AJAX requests
  • FormData support with automatic token injection
  • Global AJAX setup for seamless security across all tools
  • Enhanced protection against cross-site request forgery attacks
New Tool

XSS Filter Bypass Tool

Generate XSS (Cross-Site Scripting) payloads for security testing. Includes basic, bypass, attribute, and advanced payloads with customizable alert messages. Perfect for authorized security testing and penetration testing.

  • Generate XSS payloads in multiple categories (Basic, Bypass, Attribute, Advanced)
  • Customizable alert messages for testing
  • Various encoding and bypass techniques included
  • Payloads displayed as text only - safe for testing
  • For authorized security testing only
Try Now
New Tool

QR Code Generator with Logo Support

Generate professional QR codes from any text, URL, or data. Customize size, colors, error correction level, and add your logo in the center. Download as PNG or SVG. 100% client-side processing ensures complete privacy.

  • Generate QR codes from text, URLs, emails, phone numbers, and more
  • Customizable size (200-1000px), colors, and error correction levels
  • Add logos in the center with adjustable size (10-30% of QR code)
  • Download as PNG or SVG format
  • 100% client-side processing - your data never leaves your device
Try Now
Explore All Tools

Ready to Boost Your Productivity?

Explore our complete collection of developer-focused tools. Free, fast, and secure.

Internal Tools Dashboard