The modern platform for synthetic data,
data protection and transformation
Generate realistic synthetic datasets, protect sensitive information with PII anonymization, and transform data between popular file formats — all in one privacy-safe platform.
Three Pillars of Data Management
Sylvaera provides modular, secure capabilities designed to safeguard user privacy, accelerate software integration pipelines, and simplify file operations.
Synthetic Data Generation
Create realistic structured data from prompts, schemas and SQL.
Data Protection
Detect and anonymize sensitive and PII data before sharing or using it.
File Transformation
Convert and transform CSV, JSON, XML, Excel, SQL and other supported formats.
Synthetic Data Generation
Generate production-like mock datasets, schema models, and API endpoints dynamically. Perfect for seeding test databases, developing client applications, and validating data pipelines without compromising user privacy.
- ✓ AI-driven prompt parsing to JSON/CSV
- ✓ Ingest SQL CREATE TABLE schemas
- ✓ Real-time relational dependency resolution
Synthetic Data Generator
Generate realistic synthetic datasets without using sensitive production data.
Schema to Dataset
Paste any SQL CREATE TABLE schema and get a relationally consistent mock dataset.
AI SQL Query Generator
Generate optimized SQL query statements and populated schemas from natural language.
Mock API Generator
Paste OpenAPI specs or endpoint instructions to generate mock API JSON payloads.
Data Protection & Masking
Scan, detect, and redact personally identifiable information (PII), credentials, and financial metrics in your staging datasets. Apply character masking and data swaps to ensure compliance with HIPAA, GDPR, and SOC2.
- ✓ Swap names, emails and phone numbers
- ✓ Character obfuscation & redaction rules
- ✓ 100% local, secure in-browser anonymization
PII Anonymizer
Mask, redact, or replace sensitive data fields like names, emails, and phone numbers.
PII Detector
Scan and detect PII, financial credentials, and national identifiers within your datasets.
Data Masking
Apply character-masking algorithms (e.g. *******) to block readability of sensitive attributes.
Base64 Encoder
Convert text, code, or UTF-8 strings into standard or URL-safe Base64.
Base64 Decoder
Decode Base64 payloads and data blocks back into readable UTF-8 text strings.
URL Encoder
Percent-encode URL parameters, query strings, and special characters safely.
URL Decoder
Decode percent-encoded URL query parameters back into plain text.
File Format Transformation
Translate schemas and interchange structures between JSON, CSV, Excel, XML, and YAML formats. Format or clean records, encode base64 payloads, and validate syntaxes client-side with zero data server storage.
- ✓ Bidirectional converters for CSV/JSON/Excel
- ✓ AI-assisted dataset cleaner and deduplicator
- ✓ XML-to-JSON and Base64 URL escaper codecs
File Format Converter
Convert data tables seamlessly between CSV, JSON, XML, YAML, and Excel spreadsheets.
CSV to JSON
Convert CSV tabular data into structured JSON array string format.
JSON to CSV
Flatten complex hierarchical JSON arrays into clean CSV spreadsheets.
Excel to CSV
Extract workbook sheets from Excel (.xls/.xlsx) files to flat CSV tables.
CSV to Excel
Convert flat CSV records into formatted Microsoft Excel (.xlsx) workbooks.
JSON to XML
Convert JSON arrays and object structures into clean formatted XML tags.
XML to JSON
Translate XML elements and attributes into structured JSON objects.
CSV Cleaner
AI-powered cleaner that detects and resolves duplicates, null values, and formatting issues.
JSON Formatter
Format, validate, prettify, or minify JSON structures with line-by-line syntax error parsing.
Guides & Resources
Technical guides covering database seeding, format conversions, CSV data sanitization, and PII anonymization principles.
How to Format, Validate and Minify JSON Online
How to Clean Messy CSV Data the Right Way
What is PII Data and How to Anonymize It
How to Convert JSON to CSV Online for Free
How to Generate Realistic Test Data for SQL Databases
How to Generate SQL Queries from Plain English
Built for every data workflow
Data Engineers
Generate realistic seed data for databases, mock API responses for downstream pipelines, and write complex SQL logic.
QA Engineers
Create thousands of test records containing realistic parameters. Cover edge cases with custom empty null simulators.
Data Analysts
Scrub duplicate keys, spacing errors, and formats in messy spreadsheets. Convert files to JSON without writing code.
Enterprise Compliance
Apply GDPR, HIPAA, and India DPDP rules. Secure local browser processing ensures no information values are leaked.
Frequently asked questions
Is Sylvaera completely free to use?
Yes. All capabilities on Sylvaera are completely free to use. There are no registration paywalls, usage caps, or credit card requirements.
What does PII anonymization do?
Personally identifiable information (PII) anonymization detects attributes like names, emails, national IDs, and credit cards. It masks or replaces them with synthetic fakes to preserve privacy.
Can I convert Excel spreadsheet workbooks?
Yes. The format converter extracts specific sheet tabs from Excel `.xls`/`.xlsx` files and converts them into flat CSV or JSON structures in milliseconds.
How is my data security managed?
Sylvaera prioritizes client-side security. Our conversion, validation, and encoding capabilities run entirely local within your browser, ensuring your data never travels online.