Analyze Security Logs at Lightning Speed
The fastest desktop JSONL viewer built for security analysts, SOC teams, and DevOps engineers. Handle 10M+ rows and 5GB+ files with ease.
10M+
Rows Instantly
5GB+
File Size Tested
6MB
App Size
See It In Action
JSONL Viewer Pro makes analyzing massive log files effortless. Open 5GB files instantly, filter on nested fields, and export results—all with native Mac performance.
Watch Demo
See how fast you can analyze security logs with advanced filtering, nested object flattening, and real-time search.
Built for Security Operations
Stop struggling with command-line tools or waiting for Elasticsearch to spin up. Analyze Suricata, Zeek, EDR log…
Analyze Security Logs at Lightning Speed
The fastest desktop JSONL viewer built for security analysts, SOC teams, and DevOps engineers. Handle 10M+ rows and 5GB+ files with ease.
10M+
Rows Instantly
5GB+
File Size Tested
6MB
App Size
See It In Action
JSONL Viewer Pro makes analyzing massive log files effortless. Open 5GB files instantly, filter on nested fields, and export results—all with native Mac performance.
Watch Demo
See how fast you can analyze security logs with advanced filtering, nested object flattening, and real-time search.
Built for Security Operations
Stop struggling with command-line tools or waiting for Elasticsearch to spin up. Analyze Suricata, Zeek, EDR logs, and cloud audit trails instantly.
Filter alerts by severity, hunt for suspicious IPs, and export filtered results. Handle daily 5GB+ log files without breaking a sweat.
AWS CloudTrail, Azure logs, GCP audit logs. Nested JSON fields automatically flattened for easy filtering and sorting.
Endpoint detection logs with deeply nested objects. Use numeric operators like alert.severity <= 2 for high-priority threats.
Powerful Features
Blazing Fast Performance
Multi-threaded parsing with simdjson. Built with C++ for native speed, not Electron bloatware. Opens 5GB files in seconds.
Nested Object Flattening
Automatically expands nested objects into columns: alert.signature, flow.bytes_toserver, user.profile.email. Filter on any nested field.
Advanced Filtering
Text search across all columns. Numeric operators: >100, <=50, !=0. Perfect for filtering by severity, byte counts, or timestamps.
Multiple File Formats
Supports .jsonl and .jsonl.gz (gzip compressed). Export filtered results. Quick stats showing min/max/avg values.
Column Management
Freeze important columns, hide/show any field, auto-sizing. Perfect for working with wide security log schemas.
Privacy First
Native Mac app. No internet required. Your data never leaves your machine. Small 6MB footprint. Zero telemetry.
Why Security Teams Choose JSONL Viewer Pro
3-5hours
vs command-line tools
$2,000+
vs Elasticsearch cluster
100K+
Parsing speed
<750MB
For 5GB files
What Security Professionals Say
“I analyze IoT device logs with deeply nested sensor data. JSONL Viewer made it trivial to filter on device.temperature.celsius > 80 across millions of records. Saved me hours every week.”
DevOps Engineer
“Finally, a tool that can handle our daily Suricata logs without choking. The nested field flattening is a game-changer for hunting through alert metadata. Worth every penny.”
Karthik Shankar
SOC Analyst
“I’m predominantly using JSONL right now for analyzing flow data from Suricata in my role at OPSWAT.”
Pedram Amini
Chief Scientist
Simple, Transparent Pricing
Launch pricing - Regular price $79
Individual
$49
Perfect for solo analysts
- ✓ All features included
- ✓ Lifetime updates
- ✓ Email support
- ✓ Mac Silicon native
BEST VALUE
Team (5 seats)
$229
For SOC teams
- ✓ Everything in Individual
- ✓ 5 license keys
- ✓ Priority support
- ✓ Team training session
Enterprise
Custom
For large organizations
- ✓ Unlimited seats
- ✓ Dedicated support
- ✓ Custom features
- ✓ SLA guarantee