Hinglish mein likho,
professionally bhejo.

How MailFix Works

MailFix is a free, no-login suite of AI tools built specifically for Indian professionals. Every tool on the platform is designed around one idea: the things that take Indians 20 minutes should take 20 seconds.

Writing a professional email from a rough Hinglish draft? Paste it in, pick a tone — Polite, Firm, Formal, Apology, or Follow-up — and get a complete email with subject line in one click. The AI understands Indian workplace context: office politics, vendor delays, salary negotiation, and the particular art of following up without offending.

For salary calculations, enter your CTC and get an instant breakdown — basic salary, HRA, employer PF, employee PF, professional tax by state, and income tax under New or Old regime for FY 2025-26. No spreadsheet, no guessing. The CTC to In-Hand Calculator handles all deductions automatically and shows you exactly what will hit your bank account every month.

All tools run in your browser. Nothing is saved, no account is needed, and no personal data is stored. For AI tools like the email fixer and paraphrase tool, your text is sent to an LLM API and immediately discarded — it is never used for training.

Why Hinglish Email Writing is Harder Than It Looks

Most Indian professionals think in Hindi (or their regional language) and write in English. The result is a constant mental translation that slows down writing, introduces awkward phrasing, and often comes across as either too casual or too stiff — depending on which words slip through.

A message like "Sir please do the needful and revert at earliest" is perfectly clear to another Indian reader but sounds strange to a global audience. Conversely, trying to write formal British English from scratch feels unnatural and often produces the wrong tone — too cold for Indian workplace culture, where a touch of warmth is expected even in professional communication.

Hinglish is not broken English — it is a dialect. It has its own grammar patterns, idioms, and social registers. MailFix's email fixer understands this. When you write "bhai kal tak ka kaam nahi hua please extension chahiye", it doesn't just translate — it reads the intent (requesting a deadline extension), infers the relationship (colleague, not manager), and writes an appropriate email with the right level of formality, a clear subject line, and a professional closing.

This is why MailFix works where generic AI tools like ChatGPT fall short for Indian users. You don't have to prompt-engineer or explain context. The tool knows what you mean.

Salary & Tax Calculators — What Each Tool Does

Indian salary structures are uniquely complex. A single offer letter number — your CTC — hides a dozen components, each with its own tax treatment. MailFix's calculator suite breaks all of it down clearly.

For deeper understanding of how these numbers work, read our guides: How CTC is Calculated, Income Tax Slabs FY 2025-26, New vs Old Tax Regime, and Professional Tax by State.

Document & Utility Tools for Indian Professionals

Beyond salary calculators and email writing, MailFix covers the practical paperwork that every Indian professional deals with at some point.

The GST Invoice Generator creates valid tax invoices with GSTIN, HSN codes, and CGST/SGST/IGST breakdown — downloadable as PDF. Freelancers and small business owners use it to generate compliant invoices in under two minutes. The Rent Receipt Generator produces HRA-compliant receipts in the exact format employers accept for Section 10(13A) tax exemption claims.

Need to resize a photo for an Aadhaar update, PAN card application, or UPSC form? The Photo Resizer has presets for every Indian government portal requirement and processes images entirely in your browser — nothing is uploaded to any server. Similarly, the QR Code Generator creates UPI payment QR codes (compatible with PhonePe, Google Pay, Paytm, and BHIM), WiFi QR codes, and vCard contact codes — all free, static, and downloadable.

For developers, the JSON Tools suite formats, validates, minifies, and converts JSON to CSV or YAML entirely in the browser. For health tracking, the Health Calculator covers BMI (using Asian standards), BMR, TDEE calorie needs, body fat percentage using the U.S. Navy formula, and daily water intake — all in one tool.

About MailFix

MailFix was built for the Indian professional who is tired of context-switching between a dozen different websites to get basic work done. Whether you are a fresher calculating your first in-hand salary, a senior manager writing a delicate email to a difficult client, a small business owner generating a GST invoice at 11pm, or a government employee checking your professional tax — MailFix puts every tool in one place.

The platform is completely free. There are no paid tiers, no subscription plans, and no login walls. It is supported by Google AdSense display ads. All financial calculators use the latest FY 2025-26 tax slabs and rules and are updated each time the Union Budget brings changes.

Read our guides to understand the calculations behind the tools: What is TDS, EPF Withdrawal Rules, Gratuity Eligibility and Formula, What is Form 16, and the complete Salary Terms Glossary.