mihoyonb
Free browser-based tools that never upload your files
mihoyonb is a growing collection of creative tools that run entirely in your browser. Start with the Perler bead pattern generator, check pasted text with the AI watermark checker, then split images, convert Markdown and clean up subtitles — all on your device.
No uploads. No account. No cost.
Available now
Perler Bead Pattern Generator
Photo to printable bead pattern, in your browser
Perler Bead Pattern Generator
Photo to printable bead pattern, in your browser
Upload a photo and get a printable bead pattern in seconds. The generator samples your image into a grid, matches every cell to a 96-color numeric reference palette, counts the beads you need per color, and exports a high-resolution PNG blueprint plus a CSV shopping list. Works with Perler, Hama and Artkal beads.
- 96-color numeric reference palette
- Bead count and share per color
- Printable high-resolution PNG pattern
- CSV shopping list for bead shopping
AI Watermark Checker
Find zero-width spaces, narrow spaces and smart quotes in pasted text, then copy clean plain text.
Open toolPhoto Collage
Combine photos into one image with grid layouts — free, no upload.
Open toolImage Splitter
Split long images into equal slices or a 3×3 Instagram grid — free, no upload.
Open toolImage Watermark
Batch text or logo watermarks on images, downloaded as one ZIP.
Open toolSocial Media Image Resizer
Resize one image for Instagram, X, LinkedIn and YouTube in a click — free, no upload.
Open toolSensitive Word Checker
Scan ad copy and posts for risky claims, with highlights and one-click masking.
Open toolMarkdown to Image
Turn Markdown into a shareable PNG with live preview and custom themes.
Open toolQR Code Generator
Free QR code generator with logo, colors, and transparent PNG export.
Open toolStamp Maker
Design round, oval and rectangular stamps with curved text and an aging effect. Export PNG, SVG, PDF.
Open toolPhoto Stamp
Place your stamp on any photo with a realistic ink blend. Drag to position, export full-res.
Open toolVideo Frame Extractor
Capture still frames from any video in your browser, one by one or in bulk.
Open toolSubtitle Converter
Convert SRT to VTT, shift timing, merge and clean up subtitles locally.
Open toolPrivate by design
Your files never leave your device
Every tool processes images and text locally in your browser tab. There is no upload step and no server-side processing — what you open stays on your computer, tablet or phone.
No account, no email, no tracking of your content
Open a page and start working. We never ask you to sign up, and we do not look at the photos or text you load into a tool.
Free, with no watermarks or export limits
No paywall, no daily quota and no watermarked downloads. Export at full resolution as often as you like.
Frequently asked questions
Are these tools really free?
Yes. Every tool on this site is free to use, with no watermarks, no export limits and no account required. The site is supported by advertising.
Do my files get uploaded to a server?
No. All processing happens inside your browser using modern web APIs, so your images and text never leave your device. You can even keep working after disconnecting from the internet in most tools.
Do I need to install anything or sign up?
No install and no signup. Open a tool in a modern browser on desktop, tablet or phone and start working right away.
What can I do with the Perler bead pattern generator?
Upload a photo and it becomes a printable bead pattern: every cell is matched to a 96-color numeric reference palette, with per-color bead counts, a high-resolution PNG blueprint and a CSV shopping list. It works for Perler, Hama and Artkal style fuse beads.
Which other tools are available?
An AI watermark checker for hidden characters, a photo collage maker, image splitter, batch image watermark, social media image resizer, sensitive word checker, Markdown to image converter, QR code generator, subtitle converter (SRT/VTT) and video frame extractor. All of them run locally in your browser and share the same no-upload, no-signup approach.
Turn a photo into a bead pattern in under a minute
Pick a photo, choose your pattern width, and print the blueprint. Everything runs on your device.