01
Sequence Validation
Check whether your sequence contains valid DNA or RNA nucleotide characters.
MOLECULAR BIOLOGY TOOL
DNA / RNA Sequence Builder
Build, edit, validate, and analyze nucleotide sequences with real-time molecular statistics and sequence transformations.
A
T
G
C
SEQUENCE ANALYSIS
DNA Sequence
Waiting for sequence
LENGTH
0
nucleotides
GC CONTENT
0%
G + C composition
MOLECULAR WEIGHT
0
Da · estimated
BASE TYPES
0
unique nucleotides
COMPOSITION
Nucleotide Distribution
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0%
T
0%
U
0%
G
0%
C
0%
SEQUENCE
Current Sequence
Your sequence will appear here.
COMPLEMENT
Complementary Strand
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REVERSE
Reverse Sequence
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REVERSE COMPLEMENT
Reverse Complement
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SEQUENCE DATA
Export Your Analysis
Copy your sequence and calculated results for further molecular analysis.
MOLECULAR BIOLOGY
Sequence analysis at a glance
This tool provides basic sequence-level calculations to help researchers inspect nucleotide composition, sequence length, and common sequence transformations.
02
Composition
View nucleotide distribution and GC content directly from your sequence.
03
Sequence Transformation
Generate complementary, reverse, and reverse complementary sequences instantly.
04
Molecular Information
Obtain sequence length and an estimated molecular weight for the entered nucleotide sequence.