DNA to mRNA Converter
Paste a DNA template strand sequence and instantly get the corresponding mRNA transcript using standard base-pairing rules.
DNA Template Strand
Enter bases A, T, G, C — case-insensitive. Other characters are ignored.
Input contains no valid nucleotide bases (A, T, G, C).
Base Pairing Reference
A
U
Adenine → Uracil
T
A
Thymine → Adenine
G
C
Guanine → Cytosine
C
G
Cytosine → Guanine
mRNA Transcript
Enter a DNA sequence and click Convert
Display limited to the first 10,000 characters. The full sequence is used when copying.
Sequence Statistics
Input Length
0
nucleotides
mRNA Length
0
nucleotides
Codons (triplets)
0
complete triplets
GC Content
0%
of mRNA bases
mRNA Base Composition
A: 0%
U: 0%
G: 0%
C: 0%
Copied!
Summary
Paste a DNA template strand sequence and instantly get the corresponding mRNA transcript using standard base-pairing rules.
How it works
- Enter or paste a DNA template strand sequence (A, T, G, C) into the input field.
- Non-nucleotide characters are automatically stripped or flagged as errors.
- Each DNA base is mapped to its complementary mRNA base: A → U, T → A, G → C, C → G.
- The resulting mRNA sequence is displayed with optional codon grouping (triplets).
- Use the Copy button to copy the mRNA sequence to your clipboard.
Use cases
- Quickly verify transcription base-pairing for biology homework or coursework.
- Check mRNA sequences during molecular biology research or lab prep.
- Teaching students the central dogma — DNA transcription step.
- Generating mRNA sequences from known gene template strands for analysis.
- Cross-checking manual transcription work to catch base-pairing errors.
- Preparing sequences for downstream codon analysis or protein translation.
Frequently Asked Questions
Last updated: 2026-06-18 ·
Reviewed by Nham Vu