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Document and Entity Information
 12 Months Ended
Dec. 31, 2025
shares
Document and Entity Information  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Period End Date Dec. 31, 2025
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-36515
Entity Registrant Name MATERIALISE NV
Entity Incorporation, State or Country Code C9
Entity Address, Address Line One Technologielaan 15
Entity Address, Postal Zip Code 3001
Entity Address, City or Town Leuven
Entity Address, Country BE
Entity Common Stock, Shares Outstanding 59,067,186
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Accelerated Filer
Entity Emerging Growth Company false
ICFR Auditor Attestation Flag true
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Auditor Name KPMG Bedrijfsrevisoren BV / KPMG Réviseurs d’Entreprises SRL
Auditor Firm ID 1050
Auditor Location Zaventem, Belgium
Entity Central Index Key 0001091223
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Amendment Flag false
Document Financial Statement Error Correction [Flag] false
Business Contact  
Document and Entity Information  
Entity Address, Address Line One Technologielaan 15
Entity Address, Postal Zip Code 3001
Entity Address, City or Town Leuven
Entity Address, Country BE
Contact Personnel Name Carla Van Steenbergen
Country Region 32
City Area Code 16
Local Phone Number 39 66 11
Contact Personnel Fax Number 39 66 00
ADR  
Document and Entity Information  
Trading Symbol MTLS
Security Exchange Name NASDAQ
Title of 12(b) Security American Depositary Shares
Ordinary shares  
Document and Entity Information  
Security Exchange Name NASDAQ
Title of 12(b) Security Ordinary Shares
No Trading Symbol Flag true