• Professional image compression tool: batch processing, multiple formats (JPG/PNG/WebP/GIF/TIFF//AVIF), lossy/lossless compression, target size control, resolution scaling, auto best format. 100% local processing, privacy protected.

(Image Compression)[https://commontools.top/tools/legacy-image-converter]

• Convert BMP, TGA, PCX, TIFF and other legacy formats to modern JPG or WebP, all processed locally to protect your privacy. (Legacy Image Converter)[https://commontools.top/tools/legacy-image-converter]

• AVIF / WebP ↔ PNG / JPG high-quality batch conversion with real-time preview comparison and quality control, all processed locally.

(Modern Image Format Converte)[https://commontools.top/tools/modern-image-converter]

• Professional video compression tool: batch processing, multiple formats (MP4/MOV/AVI/WebM/M4V), H.264/VP9 encoding, CRF/bitrate/size compression modes. 100% local processing, privacy protected.

(Video Compression)[https://commontools.top/tools/video-compression]

• High-quality document format conversion, 100% browser local processing, no file upload.

(Format Conversion)(https://commontools.top/tools/conversion)

• Protect your files with AES-256-GCM military-grade encryption, supporting PDF, images, documents, text and more

(File Encryption)[https://commontools.top/tools/Encryption]

• Add professional watermarks to PDFs and images, supporting Chinese/English, custom opacity and rotation angle.

(Watermark Tool)[https://commontools.top/tools/watermark]

• Add handwritten signatures and date panels anywhere on PDF, supporting drag and resize.

(Electronic Signature)[https://commontools.top/tools/signature]

• ZIP format compression/decompression, 100% browser local processing, AES-256 encryption support.

(File Compression/Decompression)[https://commontools.top/tools/compression]

• Convert iPhone HEIC/HEIF images to universal JPG format, 100% browser local processing, privacy protected.

(HEIC to JPG Converter)[https://commontools.top/tools/heic-to-jpg]

• Optimized for iPhone screen recordings: crop status bar, compress size, adjust quality. Uses native browser APIs, 100% local processing, privacy-friendly.

(iPhone Screen Recording Editor (Crop, Compress, Blur))[https://commontools.top/tools/screen-recording]

• Batch convert iPhone ProRAW (.DNG) and HEIF Burst to JPG with selective EXIF metadata retention, all processed locally.

(ProRAW / HEIF Pro Converter)[https://commontools.top/tools/proraw-converter]

Team: CommonTools Development Team
Site: https://commontools.top/
Contact: support [at] commontools.top
Location: International

Thanks to all users who provide feedback and suggestions
Special thanks to the open-source community

2026-01-25