MetTool - Professional Free Online Tools Platform

Professional online image compression tool supporting JPG, PNG, WebP formats. Smart compression algorithm maintains image quality while significantly reducing file size, improving website loading speed.

Support JPG, PNG, WebP, AVIF and other mainstream image format conversion. Batch processing, high quality output, completely free. Privacy protection with local processing without server upload.

Professional image resizing tool supporting smart scaling, cropping, stretching and other modes. Lock aspect ratio, maintain image quality, suitable for avatar creation, website optimization and other scenarios.

Using advanced AI technology for one-click intelligent background removal, generating transparent PNG. Supports portraits, products, animals and various image types with precise effects and simple operation.

Professional online QR code generation tool supporting text, URLs, phone numbers and other content. Customizable colors, styles, logos with high-definition output suitable for marketing promotion.

Professional long image splitting tool with intelligent content boundary recognition for precise segmentation into multiple images. Supports custom height and batch processing, perfect for comic pagination and long screenshot division.

Professional iPhone long image stitching tool that combines multiple screenshots into one complete long image in sequence. Uses first image width as baseline, automatically adjusts subsequent image sizes, perfectly solving iPhone's inability to scroll screenshot.

Professional movie subtitle cropping tool for precise subtitle area extraction from video screenshots. Supports batch processing, suitable for language learning, meme creation and other scenarios.

Convert Word documents to PDF format online with high quality output and original formatting preservation.

Convert Markdown files to HTML, PDF, images and other formats online with syntax highlighting and theme support.

Professional Android/iOS/PC file transfer tool supporting LAN P2P file sharing. Utilizes WebRTC technology for wireless transfer, compatible with multiple devices,

Professional URL encoding and decoding tool supporting URL and URI component conversion. Handles special characters, Chinese characters and other URL parameters, ensuring correct URL format for web development and API debugging.

Professional JSON formatting and beautification tool supporting JSON string formatting, compression, and validation. Provides syntax highlighting, fold/expand, error detection and other features to improve JSON data processing efficiency.

Professional online video compression tool using advanced encoding technology to significantly reduce file size while maintaining high-quality visuals. Supports MP4, MOV, WebM formats, improving transmission efficiency.

Universal video format conversion tool supporting MP4, AVI, MOV, MKV, WebM and other mainstream format conversion. High-speed conversion maintaining original quality for different platform playback needs.

Professional video to GIF animation tool for easy conversion of video clips to high-quality GIF animations. Supports custom frame rate and size adjustment, perfect for social media sharing needs.

Professional online audio editing tool with audio trimming, segment selection, and waveform visualization. Pure frontend processing for privacy protection, supports WAV export, perfect for audio editing and ringtone creation.

Professional online lottery tool supporting multi-participant fair random drawing. Suitable for annual party lottery, event lottery, classroom interaction and other scenarios with simple operation and fair results.

Romantic heartbeat effect tool creating warm visual experiences. Suitable for confessions, anniversaries, Valentine's Day and other special moments, conveying sincere emotions and creating beautiful memories.

Solemn Qingming memorial page creating memorial spaces for departed relatives and friends. Simple and solemn design helps express thoughts and feelings, inheriting Chinese traditional culture.

Carefully designed maze games with multiple difficulty levels to exercise spatial thinking and logical abilities. Auto-generated mazes with unlimited challenges for puzzle entertainment.

Classic nostalgic Snake game to relive childhood memories. Easy to learn, supports keyboard and touch controls, challenge high scores suitable for all ages.

Innovative gesture-controlled solar system 3D visualization tool. Use camera to recognize gestures: fist to rotate universe, pinch to zoom view. Immersively explore the solar system's eight planets with unprecedented cosmic interaction.

Professional online Go game supporting multiple board sizes (9x9, 13x13, 19x19) with built-in intelligent AI opponent. Exercise strategic thinking and experience the charm of Go.

Professional online Gomoku (Five in a Row) game with advanced AI algorithms supporting multiple difficulty levels. Features Alpha-Beta pruning and iterative deepening search for challenging gameplay.

Classic Tetris game, relive childhood memories. Supports keyboard and touch controls, scoring system, level progression, challenge high scores.

Professional online 3D model preview tool supporting GLB and GLTF format preview with rotation, scaling, and animation controls. Local processing ensures data security without software downloads.