Velona Blog

Tutorials, product updates, and guides for Indian developers building with AI.

Free Online AES Encryption & Decryption Tool: Secure Text Safely
Encrypt and decrypt text using AES-CBC, AES-GCM, or AES-CTR algorithms instantly with Velona's free cryptographic utility and REST API.
Developer Tools · 27 July 2026 · 3 min read
Free Online HTTP Security Headers Auditor: Analyze Web Security Policies
Audit website HTTP security headers, evaluate Content Security Policy, HSTS, and X-Frame-Options policies instantly with Velona's free Security Auditor.
Developer Tools · 27 July 2026 · 3 min read
Free Online SQL Beautifier & Query Formatter: Clean SQL Queries
Prettify messy SQL queries, format complex JOINs, and standardize SQL syntax instantly with Velona's free online SQL Beautifier and REST API.
Developer Tools · 27 July 2026 · 3 min read
Free Online JSON to YAML, TOML, & XML Converter: Transform Data Formats
Convert configuration files between JSON, YAML, TOML, and XML formats instantly with Velona's free online Converter and REST API endpoints.
Developer Tools · 27 July 2026 · 3 min read
Free Online SSL / TLS Certificate Inspector: Verify HTTPS Expiration and Chain
Inspect HTTPS SSL and TLS certificates, verify expiration dates, check Subject Alternative Names, and audit certificate chains instantly with Velona.
Developer Tools · 27 July 2026 · 3 min read
Free Online Regex Tester & Evaluator: Test Regular Expressions Online
Test regular expression patterns, match groups, and substitution rules instantly with Velona's free online Regex Evaluator and REST API.
Developer Tools · 27 July 2026 · 3 min read
Free Online Cron Expression Explainer: Parse and Generate Crontab Schedules
Translate complex crontab schedules into plain English, generate custom cron expressions, and test background job schedules safely with Velona's free Cron Explainer.
Developer Tools · 27 July 2026 · 3 min read
Free Online DNS Propagation Checker: How to Verify Global DNS Changes Instantly
Check A, AAAA, CNAME, MX, and TXT record propagation across 30+ global resolvers instantly with Velona's free DNS Propagation Checker and REST API.
Developer Tools · 27 July 2026 · 3 min read
Online JSON Formatter & Validator: How to Format, Clean, and Query JSON Safely
Beautify messy JSON payloads, validate syntax errors, and query nested fields with JMESPath using Velona's free online JSON Formatter and REST API endpoints.
Developer Tools · 27 July 2026 · 3 min read
Online JWT Decoder: How to Debug JSON Web Tokens Safely Without Leaking Secrets
Debug Bearer tokens, inspect claims, and verify OAuth2 expirations safely with Velona's stateless online JWT Decoder and CLI API endpoints.
Developer Tools · 27 July 2026 · 3 min read
Build an AI Resume Tailor & Cover Letter Writer with Custom Gateway Endpoints
Learn how to build an AI job application assistant in Python that parses resumes, aligns ATS keywords with job descriptions, and generates custom cover letters using Velona.
Tutorial · 26 July 2026 · 4 min read
Build an Autonomous News Digest & Web Scraper Bot with AI
Learn how to build an autonomous Python news scraper that pulls top industry stories, filters noise, synthesizes summaries via Velona's AI gateway, and delivers daily executive digests.
Tutorial · 26 July 2026 · 4 min read
Build a Real-Time Model Evaluator Playground (OpenAI vs Claude vs Gemini)
Learn how to build a real-time side-by-side LLM comparison playground in Python using asyncio, comparing response speed, output quality, and INR cost across OpenAI, Claude, and Gemini.
Tutorial · 26 July 2026 · 4 min read
Build an Automated Blog & Social Media Repurposing Pipeline with AI
Learn how to build an automated content pipeline that turns long-form articles or transcripts into SEO blogs, Twitter threads, and LinkedIn posts using Velona's unified AI gateway.
Tutorial · 26 July 2026 · 4 min read
Build a Natural Language-to-SQL Generator for SaaS Dashboards
Learn how to build a Text-to-SQL AI assistant that converts natural language business questions into safe, executable SQL queries for internal SaaS dashboards using Python and Velona.
Tutorial · 26 July 2026 · 4 min read
Build an AI Study Buddy with Long-Term Memory Using Velona Memory Sessions
Learn how to build a personalized AI study buddy that remembers student progress, weak topics, and study history across sessions using Velona Memory Sessions.
Tutorial · 26 July 2026 · 4 min read
Build a Smart WhatsApp Expense Tracker with Vision OCR using Multimodal AI
Learn how to build a WhatsApp personal finance assistant that extracts totals, vendor names, and line items from receipt photos using Vision OCR and Velona's AI gateway.
Tutorial · 26 July 2026 · 4 min read
"Talk to Your PDFs" RAG App using Custom Vector Embeddings
Learn how to build a Retrieval-Augmented Generation (RAG) app in Python to query invoices, legal documents, and research papers using Velona's vector embeddings and chat endpoints.
Tutorial · 26 July 2026 · 4 min read
Build a GitHub PR Reviewer Bot that Summarizes & Fixes Code Automatically
Learn how to build a GitHub Action PR reviewer that summarizes code changes, flags security vulnerabilities, and posts inline fix suggestions using Velona's AI gateway.
Tutorial · 26 July 2026 · 4 min read
How to Build a Multilingual WhatsApp AI Support Bot for Indian E-Commerce
Build a production-ready WhatsApp support bot that communicates in Hindi, Hinglish, and English using Velona's UPI-funded AI gateway and Twilio.
Tutorial · 26 July 2026 · 3 min read
Which AI Model Should You Use on Velona? A Practical Guide to Choosing Between 300+ Models
From coding assistants to creative writing, here's how to pick the right model on Velona with cost and quality trade-offs explained simply.
Tutorial · 25 July 2026 · 2 min read
Best Affordable AI API for Indian Students and Indie Developers in 2026
Building a side project or college assignment with AI? Here's how Velona lets you access GPT, Claude, and 300+ models without a forex card.
Tutorial · 25 July 2026 · 2 min read
Understanding Velona's INR Pricing: How Pay-As-You-Go AI Billing Works
No dollar cards, no subscriptions. See exactly how Velona's INR wallet, UPI top-ups, and per-token pricing work across 300+ AI models.
Tutorial · 25 July 2026 · 2 min read
How to Get Your First AI API Key on Velona (Step-by-Step Guide)
New to Velona? Learn how to sign up, add funds via UPI, and generate your first OpenAI-compatible API key in under 5 minutes.
Tutorial · 25 July 2026 · 2 min read