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Discover the overall structure of Teeqq AI Hub

Online Toolbox

OCR Text Extractor→

Extract printed text from images locally in your browser. Supports English/Chinese, no uploads.

Image Compressor→

Compress PNG/JPG/WebP images locally and convert formats safely in your browser.

Image Cropper→

Crop images locally with free or preset ratios, rotation, flipping, and scaling. Complete privacy.

PDF Merger & Splitter→

Merge multiple PDF files or extract pages locally. Perfect privacy protection.

PDF Add Watermark & Page Number→

Batch-add custom text/image watermarks and page numbers to PDF files locally.

PDF Page Cropper→

Crop PDF margins or custom sizes locally, supporting single or all pages. Complete privacy.

PDF Page Manager→

Reorder, rotate, delete, clone, or merge PDF pages locally. Complete privacy.

PDF Page Resizer→

Change PDF page dimensions (A4, Letter, A3, etc.) locally. Support aspect-ratio scaling, alignment choices, and custom sizes. Complete privacy.

PDF & Image Converter→

Convert PDF pages to images (PNG/JPG/WebP) or merge multiple images into a single PDF locally. Perfect privacy protection.

JSON Formatter→

Format, compress, and validate JSON data with tree view and syntax checking.

ID Photo Cropper→

Create ID photos online. Supports preset sizes, face guides, and offline chroma key bg replacement.

ID Photo Layouter→

Layout ID photos for print. Supports various photo and paper sizes, calculates optimal tiling, and generates cut marks.

Image Watermarker→

Batch-add custom text/image watermarks to images locally. Supports tiling and grid alignment.

GIF Maker & Splitter→

Create animated GIFs from images or split GIFs into individual frames locally. Complete privacy.

Base64 Encoder/Decoder→

Convert text or images to Base64 and vice versa, 100% client-side with preview.

Text Diff Checker→

Compare two text snippets side-by-side or inline with additions and deletions highlighted.

JSON Diff Tool→

Compare two JSON objects side-by-side, highlight differences in structure and values.

YAML/JSON Converter→

Convert between YAML and JSON formats instantly in both directions with syntax validation.

Regex Tester→

Test and debug regular expressions in real-time. Highlights matches and details capture groups.

URL Encoder/Decoder→

Encode or decode URL query parameters and components with full UTF-8 support.

Unicode Converter→

Convert text to Unicode escape sequences (\uXXXX) and HTML character entities, and vice versa.

UUID Generator→

Batch generate RFC 4122-compliant Universally Unique Identifiers (UUID v4) with customization.

QR Code Generator→

Generate custom QR codes from URLs or text with styles and custom colors.

Mortgage Calculator→

Calculate mortgage payments with latest LPR rates, compare Equal Principal/Interest, and generate amortization schedules.

Salary & Tax Calculator→

Calculate net salary after housing fund, social insurance, and income tax deductions across major cities.

Compound Interest Calculator→

Analyze compound interest growth with initial principal, recurring deposits, and yield rates. Visualize wealth snowballs.

Text Encrypt / Decrypt→

Encrypt and decrypt text locally with AES-256-GCM and PBKDF2. No server uploads.

PDF Encrypt / Decrypt→

Password-protect PDFs or remove protection locally with a single password. No uploads.

Image Steganography(Hide text in image)→

Hide text in images with LSB steganography. Invisible, 100% client-side.

Text Steganography→

Hide secrets with zero-width characters after visible text. Survives copy-paste, local only.

Random Password Generator→

Generate strong random passwords locally with crypto.getRandomValues. Custom length and charset.

Screen Recorder→

Record screen or window locally in your browser. Pause/resume and export WebM. No uploads.

Video to GIF→

Convert video clips to GIF locally. Adjust FPS and size. No uploads.

Image Grayscale & Pixelate→

Convert images to grayscale or pixel art locally. Preview and download.

Image to ASCII Art→

Convert images to ASCII art locally. Adjustable width and invert.

URL Parser→

Parse URL components including protocol, host, path, and query params.

Timestamp Converter→

Convert Unix timestamps and datetime. Supports seconds/milliseconds.

Base Converter→

Convert between binary, octal, decimal, hex, and bases 2-36.

User-Agent Tool→

View and parse browser User-Agent. Detect browser, OS, and device info.

Chinese Converter→

Convert Simplified and Traditional Chinese locally with OpenCC.

Pinyin Converter→

Convert Chinese to pinyin with tone marks, numbers, or plain style.

Text to Speech→

Read text aloud using Web Speech API. Choose voice, rate, and pitch.

Image Upscaler→

Upscale image size locally with 2×/3×/4× scale and interpolation options.

PDF Sign→

Add drawn or image signatures to PDFs locally. Choose pages and position.

Food Calorie Table→

Browse calories and nutrients per 100g. Filter by category or search.

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