No accounts, no watermarks, no uploads to a server. Pick a tool below and get straight to it.
Turn any track into a visualizer video with custom styles, colors, and your own logo.
Merge, split, rotate, sign, watermark, and convert PDFs — 8 tools in one.
Create a custom QR code for a link, text, WiFi, or contact card.
Create SRT/VTT captions manually, or auto-transcribe with in-browser AI (beta).
Remove the background from any photo with in-browser AI and download a transparent PNG.
ToolMint is a collection of free online tools for creators, students, and small businesses. Every tool runs directly in your web browser using modern web technology, so your audio, video, PDF, and image files are processed on your own device and are never uploaded to our servers. There are no watermarks, no usage limits, and no account is required.
Music Visualizer turns an audio track into a reactive video with eleven visual styles, your own background image and logo, floating particle effects, and export sizes for YouTube, Instagram, and vertical 9:16 for TikTok, Reels and Shorts.
PDF Toolkit brings eight everyday jobs together: merge, split, rotate, add watermarks, sign, convert images to PDF, extract pages, and more, all without sending your documents to a third party.
QR Code Generator creates scannable codes for links, plain text, WiFi networks, and contact cards, with custom colors and high-resolution PNG download.
Caption & Subtitle Generator helps you write or auto-transcribe captions and export them as SRT or VTT files for video platforms.
Background Remover uses an AI model that runs in your browser to cut subjects out of photos and save them as transparent PNGs.
Most free online tools upload your files to a remote server, which is slower and raises privacy questions. ToolMint does the work locally, which means faster results, no waiting in a queue, and nothing stored after you close the tab. Read our privacy policy or visit the tutorials for step-by-step guides, or read how the visualizer was built on our blog.