Universal Web Tools by DH Tools
All-in-one suite for PDFs, image editing, AI OCR, JSON, networking, and developer utilities. Your files never leave your browser.
🔥 Most Popular & Trending Tools
High TrafficCompress PDF Online - Free PDF Size Reducer
Compress PDF files online while preserving optimal quality. Reduce PDF file size by up to 85% in your browser without uploading to any server.
PowerPoint to PDF Converter (PPTX to PDF)
Convert PowerPoint (.pptx, .ppt) presentations into high-resolution multi-page PDF documents locally in your browser with zero server uploads.
PDF to PNG & PDF to JPG Converter
Convert all PDF pages into high-resolution (300 DPI) PNG or JPG images with 1-click batch .ZIP download. 100% private in-browser.
PNG to PDF & JPG to PDF Converter
Combine JPG, PNG, and WebP images into a single formatted PDF document with customizable page sizes.
PNG to JPG, JPG to PNG & WebP Image Converter
Convert images between PNG, JPG, and WebP formats in batch with quality control and 1-click .ZIP archive download.
Image to Excel (AI OCR Table Converter)
Extract tabular images, invoices, and physical charts into editable Excel (.xlsx) spreadsheets via AI OCR.
Merge PDF Online & PDF Combiner
Merge and combine multiple PDF documents into a single file with custom page ordering. 100% private.
Excel to PDF Converter (XLSX to PDF)
Convert Excel (.xlsx, .xls) and CSV sheets into styled, printable PDF documents directly in browser.
PDF to Excel Converter (Extract PDF to XLSX)
Extract tables, rows, and structured financial data from PDF files into editable Excel (.xlsx) spreadsheets.
Batch Image & WebP Compressor (ZIP)
Compress 20+ photos simultaneously, convert to WebP/JPG with quality control, and download in a single .ZIP archive.
Photo Background Remover (AI & Magic Wand)
Remove photo backgrounds using AI deep learning or point-and-click Magic Wand with instant transparent PNG download.
Code & Text to Image Studio (Carbon Style)
Turn source code and quotes into beautiful macOS-framed graphics with gradients, syntax themes, and 2x Retina PNG export.
Barcode & Product Label Generator (EAN-13, UPC)
Generate printable barcode labels in EAN-13, Code 128, UPC-A, and Code 39 formats for retail and inventory.
Video Thumbnail Previewer & HD Cover Viewer
Preview and view high-definition (1080p, 720p) video cover thumbnails directly in your browser.
Audio & MP3 Cutter (Ringtone Maker)
Trim and cut MP3, WAV, and audio tracks visually on an interactive waveform. Perfect for ringtones and sound bites.
IP Lookup & Live Map Locator
Inspect your public IP address, ISP provider, ASN, latency ping, and interactive OpenStreetMap geolocation.
JSON Formatter & Validator
Format, validate, beautify, and minify raw JSON with syntax error detection and color highlighting.
QR Code Generator (WiFi, Link & Text)
Generate instant, high-resolution QR codes for websites, Wi-Fi networks, WhatsApp, and text notes with 1-click download.
Online Voice Recorder & Audio Studio
Record high-fidelity voice memos directly from your microphone with live oscillating waveform and 1-click WAV / MP3 export.
Turkish VAT, Tax & Invoice Calculator
Calculate Turkish VAT (KDV), withholding tax (Stopaj), VAT tevkifat fractions (5/10, 7/10), and freelance SMM gross-to-net invoices.
🗂️ All Tool Categories
Compress PDF Online - Free PDF Size Reducer
Compress PDF files online while preserving optimal quality. Reduce PDF file size by up to 85% in your browser without uploading to any server.
PowerPoint to PDF Converter (PPTX to PDF)
Convert PowerPoint (.pptx, .ppt) presentations into high-resolution multi-page PDF documents locally in your browser with zero server uploads.
PDF to PNG & PDF to JPG Converter
Convert all PDF pages into high-resolution (300 DPI) PNG or JPG images with 1-click batch .ZIP download. 100% private in-browser.
PNG to PDF & JPG to PDF Converter
Combine JPG, PNG, and WebP images into a single formatted PDF document with customizable page sizes.
PNG to JPG, JPG to PNG & WebP Image Converter
Convert images between PNG, JPG, and WebP formats in batch with quality control and 1-click .ZIP archive download.
Image to Excel (AI OCR Table Converter)
Extract tabular images, invoices, and physical charts into editable Excel (.xlsx) spreadsheets via AI OCR.
Merge PDF Online & PDF Combiner
Merge and combine multiple PDF documents into a single file with custom page ordering. 100% private.
Excel to PDF Converter (XLSX to PDF)
Convert Excel (.xlsx, .xls) and CSV sheets into styled, printable PDF documents directly in browser.
PDF to Excel Converter (Extract PDF to XLSX)
Extract tables, rows, and structured financial data from PDF files into editable Excel (.xlsx) spreadsheets.
Batch Image & WebP Compressor (ZIP)
Compress 20+ photos simultaneously, convert to WebP/JPG with quality control, and download in a single .ZIP archive.
Photo Background Remover (AI & Magic Wand)
Remove photo backgrounds using AI deep learning or point-and-click Magic Wand with instant transparent PNG download.
Code & Text to Image Studio (Carbon Style)
Turn source code and quotes into beautiful macOS-framed graphics with gradients, syntax themes, and 2x Retina PNG export.
Barcode & Product Label Generator (EAN-13, UPC)
Generate printable barcode labels in EAN-13, Code 128, UPC-A, and Code 39 formats for retail and inventory.
Video Thumbnail Previewer & HD Cover Viewer
Preview and view high-definition (1080p, 720p) video cover thumbnails directly in your browser.
Audio & MP3 Cutter (Ringtone Maker)
Trim and cut MP3, WAV, and audio tracks visually on an interactive waveform. Perfect for ringtones and sound bites.
IP Lookup & Live Map Locator
Inspect your public IP address, ISP provider, ASN, latency ping, and interactive OpenStreetMap geolocation.
JSON Formatter & Validator
Format, validate, beautify, and minify raw JSON with syntax error detection and color highlighting.
QR Code Generator (WiFi, Link & Text)
Generate instant, high-resolution QR codes for websites, Wi-Fi networks, WhatsApp, and text notes with 1-click download.
Image Resizer & Scaler
Resize photos and graphics by exact pixel dimensions or percentage ratio with aspect ratio lock.
Photo Filters & Color Studio
Fine-tune image brightness, contrast, saturation, grayscale, sepia, and blur with live canvas preview.
CSS Gradient Generator
Create beautiful linear and radial CSS gradient backgrounds with color stops and 1-click CSS code copy.
Color Palette & Contrast Studio
Extract color codes in HEX, RGB, HSL, generate harmonic palettes, and test WCAG readability contrast.
Image to Base64 (Data URI)
Convert image files into embedded Base64 Data URI strings for HTML, CSS background-image, and JSON payloads.
Image Cropper & Rotate
Crop photos with 1:1, 16:9, 4:3 aspect ratios, rotate 90/180 degrees, and flip horizontally or vertically.
SVG to High-Res PNG & Favicon
Render scalable SVG vector graphics into transparent high-resolution PNGs (512px, 1024px, 2048px) and favicons.
PDF Page Splitter & Extractor
Extract specific single pages or page ranges (e.g. 1-3, 5, 8-10) from PDF files into a new document.
PDF Page Rotator
Permanently rotate upside-down or sideways scanned PDF pages by 90, 180, or 270 degrees.
Markdown to PDF Document
Write or paste Markdown with live formatted preview and export as a clean, styled PDF document.
Code Formatter & Minifier (HTML/CSS/JS)
Beautify or minify HTML, CSS, and JavaScript code with customizable indentation and syntax cleanup.
JSON to CSV & CSV to JSON Converter
Convert JSON arrays into Excel-compatible CSV files, or parse CSV tables into structured JSON objects.
Base64 Text Encoder & Decoder
Encode plain text to Base64 or decode Base64 back to text with full UTF-8 support.
JWT Token Decoder & Inspector
Decode JSON Web Token (JWT) headers and payloads, check token expiration timestamps, and inspect claims.
Hash Generator (MD5, SHA-256, SHA-512)
Generate cryptographic MD5, SHA-1, SHA-256, and SHA-512 checksum hashes using Web Crypto API.
Bulk UUID & GUID v4 Generator
Generate bulk cryptographically random UUID v4 identifiers with uppercase/lowercase and hyphen options.
Regular Expression (RegEx) Tester
Test and debug RegEx patterns with live match highlighting, flags, and capture group inspection.
Text & Code Diff Checker
Compare two text or code snippets side-by-side with color-coded diff highlighting for additions and deletions.
URL Encoder / Decoder & Parser
Encode and decode query strings, parse query parameters into editable tables, and fix URL formatting.
DNS Records Lookup (DoH 1.1.1.1)
Query A, AAAA, MX, TXT, and CNAME records with Cloudflare 1.1.1.1 DNS-over-HTTPS edge network.
HTTP Request Headers & Browser Diagnostics
Inspect HTTP request headers, User-Agent device parameters, and Cloudflare edge latency ping.
Strong Password Generator
Generate cryptographically random passwords with symbols, numbers, and entropy strength score.
Word & Character Counter Studio
Count words, characters, estimated reading/speaking times, and convert text case (UPPER, lower, Title, Slug).
Unit Converter (PX/REM, Storage, Temp)
Convert CSS Pixels (px) to REM, digital data storage (Bytes, KB, MB, GB, TB), and temperature units.
Unix Timestamp & Epoch Converter
Convert Epoch timestamps to human-readable dates and parse datetime strings into Unix timestamps.
Lorem Ipsum Dummy Text Generator
Generate placeholder Lorem Ipsum filler text with custom paragraph, word, or sentence counts.
Online Voice Recorder & Audio Studio
Record high-fidelity voice memos directly from your microphone with live oscillating waveform and 1-click WAV / MP3 export.
Turkish VAT, Tax & Invoice Calculator
Calculate Turkish VAT (KDV), withholding tax (Stopaj), VAT tevkifat fractions (5/10, 7/10), and freelance SMM gross-to-net invoices.
📚 Featured Guides & Technical Tutorials
In-depth workflows, performance benchmarks, and practical productivity guides prepared by our engineering team.
How to Extract Editable Excel Tables from Photos & Scanned Documents in 10 Seconds
Stop manually retyping receipts, invoices, and physical spreadsheets. Convert document photos into clean editable Excel (.xlsx) files using AI OCR.
The Ultimate Guide to Merging PDF Files Online: Fast, Secure & In-Browser
Learn how to combine multiple PDF documents, reports, and scanned pages into one organized, numbered file with zero file size limits and 100% privacy.
How to Remove Background from Photos and Create Transparent PNGs in Seconds
E-commerce product photos, social media avatars, and logos: remove messy backgrounds and generate professional transparent cutouts with in-browser AI.
How to Create Beautiful macOS-Style Code Snippet Images (Carbon Style) for Social Media
Turn messy plain code snippets into stunning macOS window cards with syntax highlighting, drop shadows, and neon gradients for Twitter, LinkedIn, and blog posts.
Batch Compress Images to WebP Without Losing Quality: Cut Page Weight by 80%
High-resolution photography makes websites visually stunning, but unoptimized media destroys page load speeds and SEO rankings. Convert to WebP in bulk.
How to Cut & Trim MP3 Audio Files Online in Your Browser Without Installing Software
From trimming unwanted silence at the beginning of an interview recording to creating a personalized 30-second smartphone ringtone, cutting audio is effortless.
Comprehensive Web & Office Suite Architecture Guide
Engineered from the ground up for maximum data confidentiality, zero server storage, and native hardware performance.
Client-Side WebAssembly (Wasm) Engine
Your files never touch third-party servers. All PDF parsing, binary stream assembly, and data transformations execute inside your device RAM using compiled near-native binary code.
ISO 32000 PDF & Vector Specifications
Strict adherence to ISO 32000 document definitions and PDF/A digital preservation standards. Vector curves, fonts, and transparency channels remain 100% loss-free.
Neural Machine Learning OCR & Table Extraction
Convert complex financial ledgers, receipts, and printed invoices into formula-ready Excel (.xlsx) spreadsheets without transmitting sensitive corporate files to cloud APIs.
Cryptographic Zero-Knowledge Security
Built using the W3C Web Cryptography API, SHA-256, AES-GCM, and NIST FIPS 180-4 hashing. Private API keys, passwords, and source code are immune to network interception.
DH Tools vs. Legacy Cloud Server Converters
Why processing directly inside your browser is fundamentally superior to uploading documents to remote cloud clusters.
| Evaluation Feature | DH Tools (In-Browser) | Traditional Cloud Services |
|---|---|---|
| Data Privacy & Sovereignty | ✅ 100% Client-Side (0 Bytes Transferred) | ❌ Uploaded & stored on third-party cloud caches |
| File Size Limitations | ✅ Virtually Unlimited (Device RAM Bound) | ❌ Strict 15MB - 50MB paywall restrictions |
| Processing Latency | ✅ Instant (Zero network upload wait) | ❌ Dependent on upstream internet bandwidth |
| GDPR / CCPA / HIPAA Compliance | ✅ Inherently Compliant (No data collection) | ⚠️ Cross-border data transfer liabilities |
| Offline PWA Support | ✅ Full Offline Execution via Service Worker | ❌ Completely unusable without active internet |
| Pricing & Subscription Lock-in | ✅ 46 Core Tools Free Forever | ❌ Recurring subscription paywalls & traps |
Why Choose DH Tools?
DH Tools is a privacy-first web utility portal for developers, office workers, students, and digital creators. Sensitive files never touch remote servers; all operations execute in local browser memory.
🔒 Zero Server Uploads
Sensitive documents, spreadsheets, and photos process directly in your browser memory (RAM).
⚡ Lightning Fast
No upload/download network bottlenecks; instant browser-native execution.
📱 PWA & Mobile Ready
Installable on mobile and desktop devices with complete offline support.
🌐 Global Edge Network
High availability powered by Cloudflare's global 300+ edge data center network.
Frequently Asked Questions
Everything you need to know about our browser-native software, privacy standards, performance, and licensing.