Filter DNA

Remove non-DNA characters from text to make sequences suitable for other applications

Tool Configuration

Configure the parameters for Filter DNA

DNA Sequence*

1 ttaagatttg cgctttgcca actgtacacc caacctcggt
     41 ttattgtcga acctcccgct tgtgccgcca tctgcatata
     81 gatcccggtc agtccgtcac attctgccaa ttgagtatcc
    121 tcgaagtctt attccacgtg ctcaaagcaa gggtatcgta
    161 cagtgataac cgcctcgtgc agatccaaat tctcgattaa
    201 cactcaagta ctgattttta tcatcaggta actaaaaact
    241 cacaatttga agcaccagcg agaatcgttc tattctctag
    281 cttcgcaaca tcgacagttg taatggcata acttcggcat
    321 tcatagtggc tgagtttagc ggactaagcg aaaaactggt
    361 cgttagatct tcctcaccat gattttacaa gaaaggtgaa
    401 ctcaatttga cggcggtaaa gttagatggc tacgcgcgac
    441 aagtctccgt atcgtcatga aattagcgaa gaggtaatgg
    481 caaagcttgg ctacgaatac aggagcgcgc tgtgattaca
    521 gtagggttag gatagcgaaa acgttcaacg tggatagact
    561 cttatcggca cacgatcata tgcttccaag gttcccaagg
    601 cgaattacta gggtgcacag agctacgagt acgctgtccg
    641 gcttgattcg ctcgtacatc cactgttcaa aaagctccga
    681 taccgacgat cactctcgat ctctgtgtgg gacgcactta
    721 ttgtggaatc agtcaaccag tgaagcattc acatgtacgt
    761 ggtacggcac gccgtggtat gttagcgttc cctgcgccgc
    801 aagtaaaccc ttcagctgtc acctcctata gtaacacgct
    841 cgcatgcaga gcctagcacc ttagctctga gttgcctgcc
    881 ggaaggatat attctgtatg tgattaaagc gaagtcaaag
    921 taaacccccc acatgcagac ctgggtaaat tctcactcag
    961 ttgaaacgta ggggccaata cgtgtgtcct tgatactact

Paste the text containing DNA sequence. Input limit is 500,000,000 characters.

Filter Pattern*

Replacement Character*

Case Conversion*

Input Your Sequence

Paste DNA sequence text that may contain formatting characters, numbers, or whitespace.

Choose Filter Pattern

Select which characters to remove (e.g., non-GATCN, whitespace, digits, or IUPAC ambiguity codes).

Configure Options

Set replacement character for removed bases and choose case conversion (uppercase, lowercase, or preserve).

Execute and Download

Click "Execute Tool" to filter the sequence. Download the cleaned sequence or copy it for use in other tools.

Use Cases

Common applications for the Filter DNA tool

Sequence Cleanup

Remove digits, spaces, and formatting characters from sequences copied from publications or databases.

Format Standardization

Standardize sequences to use only valid IUPAC nucleotide codes for downstream analysis.

Case Normalization

Convert sequences to uppercase or lowercase to meet specific tool requirements.

RNA to DNA Conversion

Remove or replace 'U' characters to convert RNA sequences to DNA format.