The tools below can be purchased via either a credit card or a wire transfer. After the purchase you will receive the product license key(s) via email with the instructions how to register it under your account. Need help deciding which product you need? Contact us.
To compare products click here.
ASN.1 Playground
1-Month Pass 
One month (non-renewing) access to the ASN.1 Playground advanced features
$70
asn1.io BASIC
Monthly Subscription
ASN.1 Playground and NAS Playground
$50 / 1 month
asn1.io BASIC
Annual Subscription
ASN.1 Playground and NAS Playground
$420 / 1 year
NAS Playground
1-Month Pass
One month (non-renewing) access to the NAS Playground advanced features.
$50
* prices per user / volume discounts for final subscriptions *
asn1.io PRO
Monthly Subscription
ASN.1 Playground, NAS Playground, ASN.1 Schema Analyzer, ASN1Doc and Visual Studio Code ASN.1 extension.
$100 / 1 month
asn1.io PRO
Annual Subscription
ASN.1 Playground, NAS Playground, ASN.1 Schema Analyzer, ASN1Doc and Visual Studio Code ASN.1 extension.
$840 / 1 year
* prices per user / volume discounts for final subscriptions *
ASN1Vcx
Annual Subscription
Visual Studio Code ASN.1 extension
$200 / 1 year
* prices per user / volume discounts for final subscriptions *
ASN.1 Playground ASN1Doc Schema Analyzer NAS Playground ASN1Vcx
BASIC The bundle for your daily needs: you can troubleshoot ASN.1 and NAS encodings and also learn ASN.1-based protocols. ✓ ✗ ✗ ✓ ✗
PRO Adds schema analysis and editing tools to the BASIC bundle, covering most ASN.1 developer needs. ✓ ✓ ✓ ✓ ✓
ASN1Vcx Do you wish to edit ASN.1 schemas or encode/decode/visualize ASN.1 data from the comfort of your favorite IDE? Choose the Visual Studio Code ASN.1 extension.


Features Free Commercial
(BASIC or PRO)
ASN.1 Playground
Schema Validation ✓ ✓
Encoding/Decoding BER/DER/OER/COER/PER/UPER ✓ ✓
Support for JSON and XML ✓ ✓
Large ASN.1 schemas * ✓ ✓
Unlimited number of Compile * ✓ ✓
Generate sample ASN.1 Value ✗ ✓
Unlimited number of Encode/Decode ✗ ✓
Decoding of concatenated PDUs ✗ ✓
Decode into CSV format ✗ ✓
Automatic encoding/decoding of open types ✗ ✓
Relay safe encoding/decoding ✗ ✓
Deep nesting in ASN.1 types ✗ ✓
Large input values and binary data ✗ ✓
Large encoding/decoding diagnostics and decoded data (values) ✗ ✓
ASN1Doc
HTML Generation ✓ ✓
Microsoft Word compatibility ✓ ✓
Processing of Javadoc-style comments ✓ ✓
Large ASN.1 schemas * ✓ ✓
Page layout formatting ✗ ✓
Alignment/Indentation/Tabulation ✗ ✓
ASN.1 Schema Analyzer
Design and Naming Analysis ✓ ✓
Large ASN.1 schemas * ✓ ✓
Performance Analysis ✗ ✓
Internationalization Analysis ✗ ✓
Versioning Analysis ✗ ✓
NAS Playground
NAS message decoding ✓ ✓
Unlimited number of Decodes ✗ ✓
Large input Message size ✓ ✓
Decode to XML ✗ ✓
Unlimited Output ✗ ✓
ASN1Vcx
Schema Color Coding ✓ ✓
Schema Autocompletion ✓ ✓
Schema Validation ✓ ✓
VS Code Workspace Support ✓ ✓
BER/DER/OER/COER/PER/UPER/CPER/CUPER/JER ✓ ✓
Decode binary to tree view ✓ ✓
Decode binary to ASN.1 value notation ✗ ✓
Encode ASN.1 value notation to binary ✗ ✓
Generate random ASN.1 Value ✗ ✓