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Convert EVTX to JSON Online


1) Upload EVTX file to convert

 

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Allowed file types: fasta, qif, ofx, iif, srt, ics, excel, ris, bib, ods, xls, xlsx, xlsm, csv, tsv, tab, xlsb, xltx, xlr, pxl, qpw, wb3, wq1, dbf, wk3, 123, mdb, evtx, pages, numbers, sqlite

2) Set converting EVTX to JSON options

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3) Get converted file

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How to convert EVTX to JSON?

1

💾 Upload Your File: Go to the site, click on «Upload File,» and select your EVTX file.

2

✍️ Set Conversion Options: Choose JSON as the output format and adjust any additional options if needed.

3

Convert and Download: Click 👉«Download Converted File»👈 to get your JSON file.

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Convert EVTX to JSON without any specialised software. Upload the file in your browser and download the JSON in seconds, on any device.
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Data files can hold records and structured fields. Your EVTX upload is encrypted in transit with HTTPS/TLS and processed in access-controlled data centers during the conversion to JSON.
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Ease of Use
Converting from EVTX to JSON has never been so simple. Our intuitive interface lets you convert files in just a few clicks.
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The records in your EVTX are never inspected or reused. After the conversion to JSON, both files are deleted automatically from our servers. Privacy Policy.

 

EVTX File

File extension .EVTX
Category File
DescriptionEVTX is the file format used by Microsoft Windows to store event log data. It records system, security, and application events, playing a crucial role in troubleshooting and auditing.
Associated programsEvent Viewer, Log Parser, various third-party analysis tools
Developed byMicrosoft Corporation
MIME typeapplication/x-evtx
Useful linksMore detailed information on EVTX files
Conversion typeEVTX to JSON

JSON File

File extension .JSON
CategoryDocument File
DescriptionJSON, or JavaScript Object Notation, is a lightweight data interchange format used for exchanging data between systems. It is a text-based format that is easy for humans to read and write, and easy for machines to parse and generate. JSON is commonly used for web APIs because it is simple, efficient, and widely supported by programming languages.

JSON consists of key-value pairs, with the keys being strings and the values being any valid JSON data type, including numbers, strings, objects, arrays, and boolean values. The syntax for a JSON object is enclosed in curly braces { } and the key-value pairs are separated by commas.

JSON is a versatile format that can be used for many different purposes, including configuration files, data storage, and communication between web applications. Its simplicity and widespread support make it a popular choice for developers.

Associated programsTotal XML Converter
Developed by
MIME type
Useful links
Rating EVTX to JSON   5 star EVTX to JSON   4.9 (2219 votes)
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EVTX to JSON Converter — Frequently Asked Questions ▼

What is an EVTX file and why is JSON a good output format for event logs?

EVTX is Windows' binary event log format — used by System.evtx, Security.evtx, Application.evtx, and hundreds of provider-specific logs. Each log entry is an XML record stored in a binary container. JSON is the lingua franca of modern APIs, logging pipelines (Logstash, Fluentd, Vector), SIEM platforms (Splunk, Elastic), and Python/JavaScript tooling. Converting EVTX to JSON produces one JSON object per event record, with nested objects for the System header fields and EventData payload, making the logs immediately consumable by any modern data stack.

What does the JSON structure of each converted event look like?

Each event record becomes a JSON object with two main sections. The System section contains: EventID, Version, Level, Task, Opcode, Keywords, TimeCreated (ISO 8601 UTC), EventRecordID, Channel, Computer, and Provider (name and GUID). The EventData section contains the event-specific key/value pairs from the XML EventData element — these vary by EventID. For Security log events, EventData holds fields like SubjectUserName, TargetUserName, IpAddress, LogonType, etc. The full Message string is included as a top-level field.

Can the JSON output be directly imported into Elasticsearch or Splunk?

The JSON output is structured to be consumable by log ingestion tools. For Elasticsearch (via Logstash or Filebeat), the JSON objects can be indexed as-is; the TimeCreated field uses ISO 8601 which Elasticsearch auto-detects as a date type. For Splunk, use the JSON sourcetype — Splunk extracts all top-level and nested fields automatically. Minor schema adjustments (renaming fields, flattening nested objects) may be needed depending on your index mappings.

How are multi-line Message fields handled in the JSON output?

Windows event messages often span multiple lines — for example, a logon event (EventID 4624) has a message listing 20+ fields on separate lines. In the JSON output, the Message string preserves newlines using the standard \n escape. JSON consumers that display the message as text will render it with proper line breaks. If you need the message split into structured sub-fields, the EventData section already contains the same data as named key-value pairs.

What is the maximum EVTX file size the online converter accepts?

The online converter accepts files up to 50 MB. A Windows Security log from a workstation or small server after a few days is typically 5–20 MB. Domain controller Security logs or busy application logs can reach hundreds of megabytes. For logs above 50 MB, filter the log in Windows Event Viewer by time range or EventID before exporting (File > Save Filtered Log As), then convert the smaller export. Alternatively, use the desktop Total CSV Converter for unlimited-size batch processing: TotalCSVConverter.exe C:\Logs\*.evtx /json /out C:\JSON\.

Is there a way to filter only specific EventIDs (e.g., 4624, 4625, 4688) during conversion?

The online converter processes all events in the EVTX file without EventID filtering. To convert only specific EventIDs, pre-filter the log using Windows Event Viewer (Create Custom View > By EventID) or PowerShell before upload: Get-WinEvent -Path C:\Logs\Security.evtx -FilterXPath '*[System[EventID=4624 or EventID=4625]]' | Export-Clixml filtered.xml. Then convert the filtered export. The desktop Total CSV Converter also supports command-line filtering options for automated pipelines.
 

 

Convert EVTX to JSON Online with Ease

The EVTX to JSON online tool is designed to simplify the conversion process of EVTX files, predominantly used for storing event logs on Windows systems, into the versatile JSON format. JSON, or JavaScript Object Notation, is widely utilized due to its readability and compatibility with various programming environments and data management systems. This conversion is essential for professionals who need to process, analyze, or visualize event logs in a more accessible format.

Converting EVTX files to JSON offers several advantages. First, JSON's lightweight and text-based structure allows for easier handling and integration into diverse applications. Additionally, JSON is human-readable, making it simpler to debug and interpret data compared to the complex, structured nature of EVTX files. This tool enhances productivity by providing a straightforward solution for developers, IT administrators, and data analysts who require efficient data manipulation capabilities.

The process of converting EVTX files to JSON is seamless with our online tool. Users simply need to upload their EVTX file to the platform, and the tool will automatically process and convert it to the JSON format in moments. The interface is user-friendly, requiring no advanced technical knowledge or software installation. It provides an intuitive solution that caters to both novice and experienced users seeking quick results without hassle.

Our EVTX to JSON converter stands out from others by offering a blend of speed, accuracy, and reliability. Unlike other converters that might require software downloads or subscriptions, our tool is completely online and accessible from any device with an internet connection. Furthermore, it ensures data privacy and security, as no files are stored on the server post-conversion. Designed with efficiency in mind, our tool offers unparalleled convenience for those in need of robust data conversion solutions.

Feature Online Converters CoolUtils Desktop Excel Built-in Other Software
Batch Conversion Limited ✅ Unlimited Manual only Limited
File Size Limit 1-5MB ✅ No limits System dependent Varies
Privacy & Security Upload required ✅ 100% offline ✅ Local only Varies
Conversion Speed Internet dependent ✅ Fast local processing Slow Medium
Advanced Options Basic ✅ Full customization Limited Basic
Cost Free/Premium One-time purchase Requires Office Subscription
Formatting Preservation Good ✅ Excellent Good Varies
Multiple Formats Support Limited ✅ 40+ formats Few formats Limited

Convert from EVTX

Using CoolUtils, it is possible to convert EVTX files to a variety of other formats:

Convert to JSON

Using CoolUtils, it is possible to convert a variety of other formats to JSON files:

                                                                                                 

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