Free tools for analysts and developers
Format, convert and explore data, build API requests and generate code. Choose one of 43 tools below.
Base64 & JWT Decoder
Decode Base64 strings and JWT tokens online. Inspect token contents, read the exp timestamp and check whether a signature is present. Runs in your browser.
Bitrix24 Batch Builder
Build Bitrix24 API batch requests: combine up to 50 methods in one call and generate a ready-to-use curl command. Free online tool.
SQL Dialect Converter
Convert common SQL patterns between BigQuery, Snowflake and Redshift. Compare date, string and aggregate functions and review generated SQL drafts.
Unit Economics Calculator
Calculate CAC, LTV, MAU/DAU, churn rate and ROI online. Explore product economics and key business metrics with a free unit economics calculator.
Text Case Converter
Convert text and JSON keys to snake_case, kebab-case, camelCase or PascalCase. Batch conversion with Unicode support and a before-and-after preview.
Universal Data Converter
Convert CSV, TSV, JSON, XML, YAML and Markdown online. Automatic format detection, batch conversion and file export.
Cron & RRULE Converter
Convert supported cron expressions and RRULE recurrence patterns online. Explore schedule syntax for task schedulers and calendars.
CSR & Certificate Decoder
Decode PEM certificate signing requests and SSL certificates online. Inspect subject, SANs, validity dates, issuer and signature algorithm.
CSV Analyzer
Analyze CSV files in your browser: column statistics, data types, missing values, duplicates and structure validation. Input files are not uploaded.
CSV Merge
Join up to four CSV files using a common column. Choose INNER, LEFT, RIGHT or FULL joins and download the result without writing SQL.
curl to Code Converter
Convert cURL to browser or Node.js fetch, axios, Python requests and PowerShell. Paste a curl command to generate an HTTP request snippet.
DAX Formatter
Format DAX expressions and explore a dependency map for Power BI, Power Pivot and SSAS Tabular. Review inferred dependencies before using them.
CSV to dbt Seed YAML
Generate dbt seed YAML from CSV. Infer column types and create a schema.yml draft for your dbt project. Review types for your database adapter.
JSON Schema to SQL Diff
Compare database structures in JSON and generate PostgreSQL migration drafts: CREATE, DROP and ALTER statements for tables, columns and indexes.
EXPLAIN Plan Visualizer
Visualize PostgreSQL EXPLAIN (ANALYZE, BUFFERS, FORMAT JSON) output. Explore plan nodes and costs in your browser without uploading the plan.
Field Extractor
Extract structured data from text using regular expressions and named groups. Preview results and export CSV or JSON online.
FTP Bridge
FTP Bridge is a FastAPI service for streaming data from FTP, FTPS and SFTP servers into Power BI and other analytics systems. Project overview and repository.
Keyword Combination Generator
Generate keyword combinations from word lists for SEO and Google Ads. Combine up to three lists and download the results online.
GraphQL Query Builder
Build GraphQL queries online with nested fields, variables and fragments. Generate query text and curl commands without sending requests.
HTTP Header & CORS Checker
Inspect browser-visible HTTP response headers, CORS access and caching online. Browser security policies limit which remote headers can be read.
JSON Formatter
Format, validate and minify JSON online. Inspect syntax errors, adjust indentation, flatten data and escape strings in your browser.
JSONPath Evaluator
Test JSONPath expressions online. Paste JSON, enter a query and inspect the results with syntax error feedback.
LookML to SQL Generator
Generate SQL drafts from supported LookML patterns or Looker Explore metadata. Select dimensions, measures, filters and joins online.
Power Query Date Range Generator
Generate Power Query M code for a date table. Choose a date range and interval, then copy a calendar query for Power BI or Excel.
DAX to MDX Converter
Convert supported DAX expression patterns to MDX drafts for OLAP and Analysis Services. Review context, cube references and unsupported functions manually.
Code Minifier & Formatter
Minify, convert to one line or beautify JSON, XML, HTML, CSS, JavaScript and SQL. Process code in your browser and copy the output.
Regex Tester
Test JavaScript regular expressions online. Highlight matches and capture groups, select flags and inspect results on your own text.
CSV to Power Query M
Generate Power Query M code from CSV for Power BI and Excel. Infer column types and copy a data import snippet online.
Attribution Window Splitter
Generate SQL attribution templates for linear, time-decay, first-click, last-click and position-based models. Supports BigQuery, PostgreSQL and other dialects.
SQL Formatter
Format SQL queries online for PostgreSQL, MySQL, SQLite and Standard SQL. Adjust indentation, uppercase keywords and inspect parser errors.
SQL Query Builder
Build SELECT, INSERT, UPDATE and DELETE query drafts online. Choose tables, columns, filters, grouping and sorting without running database queries.
SQL to ORM Converter
Convert supported SELECT queries to ORM and query builder code for SQLAlchemy, Eloquent or Doctrine. Generate a draft and review it before use.
SSH Public Key Fingerprint
Inspect SSH public keys online. View key details and fingerprint representations in your browser. Supports RSA, DSA, ECDSA and Ed25519 input.
Power BI Relationship Viewer
Visualize Power BI model relationships as an interactive SVG diagram. Load relationship JSON, arrange table nodes and export the diagram.
Timestamp Converter
Convert Unix timestamps, ISO 8601 and MS/Bitrix24 date-time strings online. Includes time-zone options, batch conversion and conversion history.
Directory Tree Generator
Generate a text directory tree from file and folder paths. Create project structure diagrams for README files and documentation online.
URL Encoder & Decoder
Parse URLs, encode and decode strings, generate slugs and inspect Punycode domains online. Input processing uses browser APIs.
UTM Builder
Build campaign URLs with UTM parameters for ads, email and social media. Use presets, preview the parameters and copy a tagged link.
UTM Cleaner
Remove UTM and tracking parameters from links online. Clean or normalize up to 1,000 URLs in a batch and download the results.
VAT Calculator
Calculate VAT from a net or gross amount using a rate you enter. View the net amount, tax and gross total in your selected currency.
Webhook Toolkit
Send HTTP requests from your browser and verify HMAC signatures locally. Inspect request details and responses where the target permits CORS access.
XML to JSON Converter
Convert XML to JSON and JSON to XML in your browser. Configure attribute prefixes, inspect the result and download the output.
YAML & JSON Converter
Convert YAML to JSON and JSON to YAML online. Validate syntax, format nested structures and download the converted configuration.