Open an .asice file in your browser
A free online viewer for electronically signed containers. Drop an .asice, .bdoc, .ddoc or .edoc file here and see at once which documents it holds, and who signed them and when. Nothing to install.
Your file never leaves your deviceFree, no account
Three steps, under a minute
No DigiDoc4 client, no card reader, no account. A browser is enough.
Choose the file
Drop the file into the box on this page, or press the box and pick a file from your computer, phone or tablet.
Read the documents
The container is unpacked in your browser. PDF, Word, Excel, image and text files open in the preview straight away.
Check signatures and download
See each signer's name and signing time, and download the files one by one or all at once.
What ASiCE Viewer shows you
Everything you need to know about a signed container, on one page.
Every file in the container
See all documents added to the container with their sizes, and download them one by one or as a single ZIP.
Signer details
Name, personal code, signing time, time stamp, role, and the certificate issuer and validity – for each signature.
Integrity check
Each file's digest is recomputed and compared with the one in the signature. A file changed after signing is flagged at once.
Preview without extra software
PDF, DOCX, XLSX, ODT, images, text, XML, JSON, CSV, audio and video open right in the browser.
Private
All processing happens on your device. We do not see, store or transmit your documents – not even the file names.
Works on every device
Windows, macOS, Linux, Chromebook, Android, iPhone and iPad. Also where DigiDoc4 cannot be installed.
Which files open here
Estonian, Latvian and Lithuanian signature containers and the European ASiC standard files.
- .asice
ASiC-E container
The default format of Estonia's DigiDoc4 and a European standard. Extensions .asice and .sce.
Read more → - .bdoc
BDOC container
The Estonian digital signature format used before .asice.
Read more → - .ddoc
DDOC file
Estonia's oldest digital signature format. No longer created, but old ones still need opening.
Read more → - .edoc
EDOC container
The container of Latvia's e-signature (eParaksts). Opens just like .asice.
Read more → - .asics
ASiC-S container
One file with a signature or time stamp. Extensions .asics and .scs.
Read more → - .cdoc
CDOC encrypted file
An encrypted container. Only the recipient can open it with their ID-card.
Read more → - .adoc
ADOC container
Lithuania's electronically signed document format.
Read more → - .p7s
P7S and P7M signature
PKCS#7 / CAdES signatures, including the e-mail attachment smime.p7s.
Read more →
Besides signature containers, ASiCE Viewer also opens ordinary files: PDF, DOCX, XLSX / XLS / ODS, ODT, PPTX (text), ZIP archives, images (PNG, JPG, GIF, WebP, SVG, BMP), text and code files (TXT, CSV, JSON, XML, HTML, MD), audio (MP3, WAV, OGG, M4A), video (MP4, WebM) and certificates (.cer, .crt, .pem). For an unknown file type you get a hex view of the content and a download button.
ASiC-E Viewer for Android
Open signed containers on your phone, even offline. See the signature details and export documents to PDF or Word.
- Works offline
- .asice · .bdoc · .edoc · .adoc · .p7s
- Export to PDF and DOCX
What is an ASiC-E (.asice) file?
ASiC-E (Associated Signature Container Extended) is a container defined by the European standard ETSI EN 319 162-1 that bundles documents together with their electronic signatures. Technically it is a ZIP file: it holds the signed files, a mimetype file and a META-INF folder with the signatures in XAdES format.
In Estonia, .asice is the default format of the DigiDoc4 client. When a document is signed with an Estonian ID-card, Mobile-ID or Smart-ID, the result is usually an .asice file. Earlier Estonian formats are .bdoc and .ddoc; Latvia uses .edoc and Lithuania .adoc.
Why won't my .asice file open?
Windows, macOS, Android and iOS do not recognise the .asice extension out of the box. There are three ways to open it:
- In the browser – drop the file onto this page. The fastest way, and it works on any device.
- With the DigiDoc4 client – the official software of the Estonian Information System Authority, which also confirms the validity of the signature. Needs to be installed.
- On your phone – the Android app ASiC-E Viewer opens containers offline.
For more detail, read the guide How to open an .asice file.
Is it safe?
Yes. ASiCE Viewer does not upload your file to a server. The container is read and unpacked in your device's browser and disappears from memory when you close the page. We use no cookies and no analytics. See the privacy page for details.
Frequently asked questions
What is an .asice file?
ASiC-E (Associated Signature Container Extended) is a container for electronically signed documents defined by the European standard ETSI EN 319 162-1. In essence it is a ZIP file holding one or more documents and their signatures. In Estonia, .asice is the default format of the DigiDoc4 client.
How do I open an .asice file without DigiDoc4?
Drop the file into the box at the top of this page, or pick it from your device. The container opens in your browser and you immediately see the documents and the signers. There is nothing to install.
Is my file uploaded to a server?
No. The file is read and unpacked only in your device's browser. It is not sent to us or to anyone else.
Does ASiCE Viewer verify the signature?
Partly. We show the signer's certificate details and the signing time, and we check that the file digests match the ones in the signature – which reveals whether files were changed after signing. We do not confirm the cryptographic and legal validity of the signature (certificate chain, validity confirmation). Use the official DigiDoc4 client for that.
How do I open an .asice file on my phone?
Open asiceviewer.com in your phone's browser and pick the file – it works on both Android and iPhone. For Android there is also the free ASiC-E Viewer app, which opens files offline and can export documents to PDF.
What is the difference between .asice, .bdoc and .ddoc?
All three are Estonian digital signature containers. DDOC is the oldest, XML-based format and can no longer be created. BDOC followed and is already based on the ASiC-E standard. ASICE is the current format, recognised across the European Union. ASiCE Viewer opens all three.
How do I get the PDF out of an .asice file?
Open the container on this page. If it holds a PDF, it opens in the preview, and the download button gives you the original file exactly as it was signed.
Can I sign a document here?
No. ASiCE Viewer is for viewing only. To sign, use the DigiDoc4 client with an ID-card, Mobile-ID or Smart-ID.
Is it free?
Yes. The online viewer is free and needs no account, registration or e-mail address.
Which browser do I need?
Any modern browser works: Chrome, Edge, Firefox, Safari, Opera or Samsung Internet. JavaScript must be enabled.