Specifications
- 18 Jun 2025
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Specifications
- Updated On 18 Jun 2025
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This page provides insights into the prerequisites and criteria necessary for utilizing the different functionalities of the Dataloop platform.
Recommended PC/Workstation
Ensure smooth performance by using a workstation that meets the following recommended specifications:
Type | Recommended |
|---|---|
RAM | 8GB |
CPU | Intel(R) Pentium(R)3805@ 1.90GHz x 2 Processor 64 bit |
Screen resolution | 1920 x 1080 |
Internet connection | Speed test: Download:18.61 Mbps / Upload: 15.68 Mbps / Ping: 31 ms |
Browser Requirements
Access the Dataloop console using one of the supported browsers. We recommend using Google Chrome for the best experience:
Supported Browser | Minimum Version |
|---|---|
Chrome | 47 |
Safari | 9 |
Firefox | 45 |
Opera | 36 |
Edge | 12 |
If you encounter issues using the web interface with any of the listed browsers, please contact Dataloop Support.
Recipe and Ontology
Configure ontologies and labels efficiently within these recommended limits:
Type | Recommended |
|---|---|
Labels | 400 labels per ontology |
Attributes | 100 attributes per ontology |
Data Management
Ensure dataset scalability and performance with the following limitations:
Type | Limit |
|---|---|
Items in the Dataset | Maximum 25,000,000 items |
Annotations in joined queries | Maximum 7,000,000 items |
Unique custom metadata keys on items in dataset | Maximum is 100 for searchable keys. To overcome this, refer to the Unsearchable Metadata article. |
Item JSON file size | Maximum 100KB |
Maximum download file size from the platform | 2GB |
Schema enforcement in Dataset | Metadata path must contain same value type across the dataset |
Search size per each search key/value | 1024 Bytes |
Item filename(full path including dirs) | 1024 chars |
Annotation label | 1024 chars |
Annotation attributes | Max 100 per annotation |
Queries limitations
Understand system constraints when constructing queries:
Query | Limit |
|---|---|
Maximum total filter terms in a query | 20 terms |
Maximum metadata filter terms in a query | 10 terms |
Max sort terms in a query | 3 terms |
Sorting over custom metadata | 1 term |
Filter by annotation Metadata | Not supported |
Dataloop permits the storage and querying of over 25,000,000 items and unlimited annotations in a dataset, However, join queries between items and annotations are limited to searching over max 7M annotations.
A Term refers to an individual element or condition used in the query to filter, sort, or search for data. Each term typically represents a distinct criterion or parameter that helps refine the results of a query.
Supported File Formats
Dataloop supports a wide range of file formats across domains to ensure flexible and scalable annotation workflows.
Type | Recommended |
|---|---|
Image | JPG, JPEG, PNG, and TIFF |
Video | WEBM, MP4, and MOV |
Audio | WAV, MP3, OGG, FLAC, M4A, and AAC |
Lidar | PCD (ASCII format with a size limit of 70 MB) |
NLP / NER | TXT, JSON, EML, and PDF |
GIS | COG, GeoTIFF, OSM, and XYZ |
Important
Audio Studio: Convert FLAC to MP3 to reduce file size without significant quality loss.
Video Studio:WEBM is the default format for video annotation. For more information, see the WEBM article.
MP4 Limitations: SAR/DAR encoding values are not supported in MP4 files.
Image Item
Define optimal conditions for image annotation:
Type | Recommended |
|---|---|
Size | 15 MB |
Formats | Refer to the Supported File Formats section. |
Resolution | 24.0 MP |
Total annotations | 1,000 |
Valid EXIF values are 1 to 8. Values outside this range (for example, 0) are ignored. Read more about Exif orientation values.
Audio Item
Best practices for audio file handling and annotation:
Type | Recommended |
|---|---|
Annotations | Up to 300 |
Recommended format | Refer to the Supported File Formats section. |
Recommended audio size | Up to 100 MB |
Important
📌 File size depends on bitrate, compression, and encoding, not just duration. A 17-minute file can be larger than a 1-hour file if encoded with higher fidelity.
Video Item
Guidelines for working with video files in annotation projects:
Type | Recommended |
|---|---|
Length | Under 5 minutes and 30 FPS |
Recommended format | Refer to the Supported File Formats section. |
Recommended storage | Dataloop Storage |
Recommended video size | 50 MB |
Total annotations | Up to 200 |
Task
Control and optimize task assignment across annotation workflows:
Type | Recommended |
|---|---|
Maximum unworked items per task (without Status) | 80,000 |
Maximum assignees per task | 1,000 |
Maximum tasks per project | 5,000 |
Assignment Limits
Define assignment structure within large-scale tasks:
Type | Recommended |
|---|---|
Maximum items per single assignment | 10,000 |
Annotation Studio
Annotation Studio supports advanced visualization and configuration:
Type | Definition | Recommended |
|---|---|---|
Multi-Modality layers | Combine multiple data types (e.g., image + text + metadata) in a single view. | 8 |
Similarity items | Used for similarity evaluation workflows (e.g., GenAI outputs). | 8 |
Multi-view items | Visualize multiple perspectives or sequential data layers for richer context. | 6 |