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encoder/decoder
asn.1 playground
Compile, Encode, Decode
Provide your schema or use a standard one to encode or decode your data.
schema tool
schema analyzer
Improve your schema
Multiple rules across multiple categories to improve your schema.


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encoder/decoder
nas playground
Decode NAS Messages
Troubleshoot your NAS messages by converting them from binary to text.
schema tool
asn.1/python

new

Python all-source encoder/decoder
Get the data bindings for your schema, encode, decode, validate your data.
schema tool
asn.1/c web

new (beta)

C all-source encoder/decoder
Get the data bindings for your schema, encode, decode, validate your data.
encoder/decoder
pki/der inspector
Inspect crypto data
Troubleshoot certificates, keys and other PKI data.
encoder/decoder
cdr inspector
new
Call Data Records Decoder
Troubleshoot and validate telecom Charging Data Records and schemas. Various formats are supported.
converter
json/ schema2asn
Have JSON? Get ASN.1
Infer an ASN.1 schema from JSON with a few clicks.
converter
proto2asn
Migrate Proto schema into ASN.1 schema
Try an international standard alternative for Google Protocol Buffers.
schema tool
asn1vcx
Microsoft VS Code extension
ASN.1 syntax highlighter, validator, with autocomplete, encode and decode, for Visual Studio Code.
schema tool
asn1doc
Document your schema
Create an HTML document from your schema with a few clicks.


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DESKTOP ASN.1 tools and compilers.