About ChemBioTube
A free toolkit for biochemistry and chemistry, running entirely in your browser.
ChemBioTube brings together the everyday tools used in biochemistry and chemistry labs, classrooms, and research — all in one place, all running instantly in your browser. No installations, no accounts, no fees.
DNA Tools
Reverse complement, GC content, base counting, sequence cleaning, and DNA→RNA transcription — built for fast sequence analysis.
Chemistry Calculators
Molar mass, molarity, dilution, solution preparation, percent concentration, pH, equation balancing, formula parsing, unit and concentration converters, plus an interactive periodic table of all 118 elements.
Why ChemBioTube
Instant & Browser-based
Every tool runs client-side. No downloads, no plugins — results update as you type.
Private by Design
Your inputs never leave your device. Nothing is uploaded to a server.
Bilingual & SEO-friendly
Full English and Chinese support, with clean URLs optimized for search engines.