Free, no-signup online tools that just work — open and use, nothing to install. Maintained by PixelBear, with new tools added over time.
Start practicing: CA DMV written test →Each tool is built for one specific need, with data you can trace back to official sources. Completely free.
371 bilingual Chinese-English questions written from the California Driver Handbook 2025, with road-sign image questions, chapter practice, mock exams (pass with 30 out of 36) and a mistake notebook.
Glossary58 essential pixel-art terms with Chinese explanations, English names, teacher's tips on common mistakes, and hand-picked free tutorial links for each term.
SleepAd-free sleep noise: one tap to play, auto black screen, sleep timer with 30s fade-out. Brown, pink, or white noise generated locally in your browser.
Pixel ArtConvert photos to crisp pixel art with nearest-neighbor scaling. PICO-8 and Game Boy palettes, optional dithering, PNG download — 100% local, never uploaded.
PDFShrink PDFs entirely in your browser with the Ghostscript engine — your file never gets uploaded. Three compression levels, no signup, no watermark. Works on Mac, Windows and iPhone.
GameGuess the country to unlock Hatsune Miku national outfits — 204 costumes, English/Japanese UI, wardrobe-first collectible quiz. Free, no signup.
More handy tools are on the way. Want something specific? Leave a comment on Xiaohongshu and let me know.
pixelbear.cc is the personal toolbox of PixelBear (像素熊老师). Every tool here solves one specific problem: content is compiled from official sources, and data works offline whenever possible. All tools are free, with more on the way.