SimpleTool Blog
Practical how-to guides for audio, image, PDF, and Excel tools — all processing locally in your browser. No uploads, no accounts.
How to Extract Text from an Image Online — Free OCR, No Upload (2026)
Batch OCR up to 50 images in your browser using Tesseract. 19 languages, ZIP download, no upload, no account.
How to Convert HEIC to JPG on Windows or Mac — Free, Bulk (2026)
Convert up to 500 iPhone HEIC photos to JPG, PNG, or WebP in your browser. GPS stripped by default. No upload, no account.
How to Blur Faces in Photos Online — AI Auto-Detection, No Upload (2026)
AI automatically detects and blurs faces in up to 100 photos at once. Blur, pixelate, black box, or emoji replacement. No upload, no account.
How to Watermark Photos in Bulk — Free, No Upload, No Sign-up (2026)
Add your logo or text watermark to hundreds of photos at once — entirely in your browser. No upload, no account, no per-image fees.
How to Convert HEIC to JPG or PNG — Free, No Upload, Bulk (2026)
Convert iPhone HEIC photos to JPG or PNG in your browser — no upload, no account, no quality cap. Batch convert hundreds of photos, strip GPS metadata, and download as ZIP.