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Professional
DNA Analysis
in Your Browser

The most powerful client-side bioinformatics toolkit. Primer design with SantaLucia thermodynamics, restriction mapping, codon optimization, ORF finding, and 10+ more tools. All running locally, all free.

10+
Analysis Tools
100%
Client-Side
0
Data Uploaded
โœ“ Tm = 62.4ยฐC ๐Ÿ”ฌ 3 ORFs Found โšก Instant Results
sequence_analysis.dna
Length
240 bp
GC Content
58.3%
Tm (avg)
62.4ยฐC
ORFs Found
3
GC Content58.3%

Everything You Need for
Sequence Analysis

A complete bioinformatics suite built for researchers, students, and professionals. No installation, no subscription.

๐Ÿงช
Primer Design
SantaLucia nearest-neighbor thermodynamics for accurate Tm. Hairpin/dimer ฮ”G, 3โ€ฒ stability, GC clamp, poly-run detection, and heterodimer checking.
SantaLucia NNHairpin ฮ”GHeterodimer
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Restriction Enzyme Mapping
Visual linear restriction map with canvas-based ruler, backbone, staggered cut markers, per-enzyme lanes, and an interactive legend.
Visual Map50+ EnzymesCanvas
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Codon Optimization
CAI-weighted RSCU engine with rare codon flagging, per-codon frequency table, and CAI score display for multiple host organisms.
CAI ScoreRSCURare Codons
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ORF Finder
Detect open reading frames across all 6 reading frames. Translates to amino acid sequences with codon-by-codon highlighting.
6 FramesTranslationHighlighting
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CpG Island Detection
Identifies CpG islands using observed/expected ratio and GC content thresholds. Visualized with a color-coded map overlay.
Obs/Exp RatioVisual Map
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RNA Secondary Structure
Predicts RNA hairpin structures using free energy minimization. Displays stem-loop diagrams with ฮ”G values.
Hairpinฮ”GStem-Loop
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GC Content Analysis
Window-based GC% sliding analysis with interactive chart. Highlights AT-rich and GC-rich regions across the full sequence.
Sliding WindowChart
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Repeat Finder
Detects tandem repeats, inverted repeats, and direct repeats. Annotates positions and repeat unit lengths across the sequence.
TandemInvertedDirect
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Kozak Scorer & AA Properties
Scores Kozak consensus strength for translation initiation. Amino acid property analysis including hydrophobicity, charge, and molecular weight.
KozakHydrophobicityMW

Up and Running in Seconds

No installation, no sign-up. Just paste your sequence and get results instantly.

1
Paste Your Sequence
Paste any DNA sequence in FASTA or raw format. Supports sequences up to hundreds of kilobases.
2
Choose Your Analysis
Select from 10+ analysis modules: primer design, restriction mapping, codon optimization, and more.
3
Get Instant Results
Results render immediately in your browser. No server round-trips, no waiting, no data leaving your device.
4
Export & Share
Copy results, export tables, and share findings directly from the app with one click.

Your Data Never Leaves
Your Browser

๐Ÿ”’
Zero Data Transmission
Every computation runs locally in JavaScript. Your sequences are never sent to any server, not even ours.
๐Ÿšซ
No Account Required
No sign-up, no email, no tracking. Open the app and start analyzing immediately.
๐Ÿ“ด
Works Offline
Once loaded, the analyzer works without an internet connection. Works great in secure lab environments.
โšก
Instant Performance
No server latency. Results are computed in milliseconds directly on your hardware.
๐Ÿ›ก๏ธ
100% Client-Side Processing
Your sequences stay on your machine.
Always private. Always secure.

Ready to Analyze
Your Sequence?

Used by researchers worldwide. The most capable free DNA analysis tool you can run in a browser.