Free Online 3GPP NR ASN.1 Messages Decoder

This online decoder allows decoding of ASN.1 encoded messages (PDU) of a 5G NR network. No ASN.1 syntaxes are required. Simply choose the ASN.1 interface you want to use and supply the data.

Available ASN.1 syntaxes are NR-RRC (3GPP TS 38.331), NGAP (3GPP TS 38.413), XnAP (3GPP TS 38.423), NRPPA (3GPP TS 38.455), E1AP (3GPP TS 38.463), F1AP (3GPP TS 38.473) and LPP (3GPP TS 37.355).

For other application domains (LTE, UMTS, ...), please use another decoder on the right.

Supported ASN.1 encoded inputs are raw (binary) or hexadecimal format. The generated output is in XML format.

Decode from file upload

  1. Select an ASN.1 interface (*):

  2. Upload the ASN.1 encoded message (max. 500 KB). Only the first PDU from the file will be decoded.

  3. Specify the format of the input file:
    Binary
    Hexadecimal

Decode from direct input

  1. Select an ASN.1 interface (*):

  2. Copy below your hexadecimal encoding (max. 100 KB). Only the first PDU will be decoded.

THIS FREE ONLINE ASN.1 DECODER SERVICE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. MARBEN PRODUCTS SHALL HAVE NO LIABILITY FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IN ANY WAY RELATED TO THE USE OF THIS SERVICE, REGARDLESS OF WHETHER THE CLAIM FOR SUCH DAMAGES IS BASED IN CONTRACT, TORT, OR ANY OTHER LEGAL THEORY. IN NO EVENT SHALL MARBEN PRODUCTS BE LIABLE FOR ANY LOSS OF PROFITS OR OTHER SPECIAL OR CONSEQUENTIAL DAMAGES, EVEN IF MARBEN PRODUCTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Privacy Policy: Your data will be deleted after decoding

(*) We're constantly adding and updating the ASN.1 interfaces. Do not hesitate to contact us if you need other ASN.1 interfaces.