Tools starting with E

E Bike Range Estimator

Estimate electric bicycle range from battery watt-hours, assist level, terrain, gradient and temperature using a real power model.

E-Invoice Applicability Checker

Check whether GST e-invoicing under Rule 48(4) applies to you, from which date, and if the 30-day IRP reporting limit binds.

E-Series Component Finder

Find the nearest standard E-series resistor or capacitor value.

E-Way Bill Distance Validity Calculator

Work out e-way bill validity days and the exact expiry date and time from transport distance, cargo type and generation time.

ECG QTc Calculator

Calculate corrected QT interval using Bazett, Fridericia, Framingham, and Hodges formulas with real-time comparison.

ECTS Credit Load Calculator

Plan how many ECTS credits you need per semester to finish your degree, with workload hours from the ECTS Users' Guide.

Editing Time Estimator

Estimate video edit hours from raw footage length, cut density, graphics, grade, mix and revision rounds.

EditorConfig Generator

Generate a .editorconfig with indentation, charset, line-ending and whitespace rules, plus per-file-type sections.

Education Loan EMI Calculator

Education loan EMI with course moratorium, simple interest accrual and the option to service interest while studying.

Effective APR Comparator

Compare two or more loan offers on their true effective APR — the IRR of the actual cash flows after processing fees, GST, bundled insurance and foreclosure penalties — and see the ranking invert when you plan to close the loan early.

Eisenhower Matrix Tool

Sort tasks into the four urgent/important quadrants from two 1-10 scores, and see how many hours go to firefighting versus planned work.

Elderly BMI Calculator

BMI for adults over 65 with the age-adjusted 24-29 desirable range, knee-height stature estimation and a MUST malnutrition score.

Electric Circuit Builder

Interactive schematic circuit simulator with live electron flow animations, component toggles, and real-time Ohm's Law calculations.

Electric Scooter Range Calculator

Estimate real e-scooter range from battery Wh, rider weight, speed, gradient and traffic using road-load physics.

Electricity Bill Calculator

Estimate your monthly electricity bill from appliance wattage, daily usage hours and your per-unit tariff.

Electricity Bill Spike Explainer

Compare two months of electricity bills and split the increase into slab creep, extra units, fixed charge, fuel surcharge and duty.

Elimination Diet Correlation Log

Log foods and reactions, and surface the possible patterns between them.

ELSS Lock-in Tracker

Track when each ELSS SIP instalment completes its 3-year lock-in, with unlocked, locked and next-to-free amounts.

Em Dash AI Tell Checker

Count em dashes, smart quotes, triads and other punctuation tells in a draft, with rates per 1,000 words and rewrite suggestions.

Email Alias Strategy Planner

Design per-service email aliases so a leaked address names the company that leaked it, with RFC length checks on every address.

Email Authentication Checker

Check a domain's SPF, DKIM, DMARC and MX records live in your browser and get a clear pass/warn/fail verdict with fixes — the deliverability-critical checks that decide whether your email reaches the inbox.

Email Deliverability Predictor

Predict how likely your email is to reach the inbox with a rule-based content audit — spam signals, subject quality, link safety, HTML structure and best practices, scored entirely in your browser.

Email Extractor

Extract email addresses from raw text, HTML content, or logs instantly, with domain frequency breakdowns and sorting.

Email Header Analyzer

Explain sender authentication and suspicious routing signals from pasted headers.

Email Header Image Size Guide

Get the export size, retina multiplier and img markup for an email header, plus how it renders in Outlook, Gmail and Apple Mail.

Email Safe Font Checker

Resolve a CSS font stack client by client, see which fonts actually install where, and get an email-safe fallback chain.

Email Signature Builder

Design a professional, email-safe HTML signature with live preview, 25+ templates, social icons, CTA buttons, QR code and vCard — then copy or download it for Gmail, Outlook, Apple Mail and Yahoo.

Email Subject Line Tester

Score email subject lines for spam risk, readability, urgency and clickability, preview inbox truncation across Gmail, Outlook and Apple Mail, and A/B test two subject lines side by side.

Email Thread Summarizer

Turn long email conversations into a concise local summary with decisions, action items, participants, and open questions.

Email Validator

Validate email syntax, domain DNS, MX records, disposable domains, role accounts, and bulk lists.

Embarrassing Story Generator

Generate cringe-worthy and hilarious embarrassing stories that are totally believable (or not).

Embedding Dimension Calculator

Calculate the memory an embedding vector needs from its dimension count and precision, with per-1K and per-1M totals.

Emergency Fund Calculator

Size your emergency fund from real monthly essentials, see your savings gap, and get a month-by-month plan to fill it.

Emergency Kit Generator

Builds a household emergency kit list with exact water, calorie and supply quantities for your family size, days of cover and local hazards.

Emergency Light Backup Calculator

Emergency light runtime from battery voltage, Ah, depth of discharge and LED load, with Peukert derating and recharge time.

Emergency Medical Card Builder

Build a printable wallet-size emergency medical card with conditions, medicines, allergies, blood group and ICE contacts.

Emergency Phrase Card Builder

Build a printable travel emergency card with your medical details, local emergency numbers and key phrases in six languages.

Emergency Response Checklist

Step-by-step first-aid checklists for heat stroke and hypothermia: warning signs, what to do right now and when to call an ambulance.

EMI Affordability Checker

Check a proposed EMI against your FOIR, your monthly surplus and a rate-rise stress test before you sign the loan.

EMI Moratorium Impact Calculator

See the extra interest, higher EMI and added tenure caused by pausing your loan EMIs for a few months.

Emoji Hub

Browse 1,898 emojis across 8 categories with keyword search and skin tones, plus trending GIFs

Emoji Letter Generator

Convert letters into emoji equivalents with multiple themes like regional indicators, bubble, animal, and food emojis.

Emoji Quiz

Guess the movie, song, phrase, or word from a series of emoji clues. Multiple categories and difficulty levels.

Emoji Remover

Remove emoji, flags, skin-tone modifiers and symbol noise from text, comments and captions without leaving broken fragments behind.

Emotional Mood → Palette Generator

A psychology-driven tool that generates color palettes based on your mood and feelings.

Employee Appreciation Note Builder

Write specific praise using the Situation-Behaviour-Impact model, with a vague-word check and a timeliness warning.

Employee Handover Document Generator

Track systems, recurring tasks, contacts and pending items into a weighted readiness score and a ready-to-send handover document.

Employee Monitoring Rights Explainer

See what common workplace monitoring actually captures, score how much your employer has disclosed, and draft the questions to put to HR in writing.

Empty State Copy Generator

Generate empty, error and loading state microcopy in four tones, then lint it for length, blame and weak button labels.

Encoded/Decoded

Encode and decode text

Encrypted Local File Vault

Store personal files as an encrypted local record index.

Encrypted Private Journal

Keep a searchable private diary entirely in this browser.

End-to-End Encryption Explainer

Trace a message hop by hop and see exactly who can read the content and the metadata, with and without end-to-end encryption.

Energy Label Decoder

Read a BEE star label properly: turn the kWh per year or ISEER figure into running cost, savings and payback between two models.

Energy Savings Calculator

See how much electricity and money you save with a higher star AC, a warmer AC setting, LED bulbs or thermal curtains.

Engagement Invitation Wording Tool

Generate engagement, roka, sagai and tilak invitation wording with family names, date, muhurat time and venue.

Engine Displacement Calculator

Work out engine cc from bore, stroke and cylinder count, with litres, cubic inches and bore-stroke ratio.

Engine Displacement Comparison

Compare two motorcycle engines on specific output, BMEP, power-to-weight, piston speed and everyday tractability.

Engineering Style Guide Generator

Turn your team's conventions into a coding standards document plus a matching .editorconfig, per language.

Engineering Template Generator

Generate pull request and GitHub issue templates, tech specs, runbooks and incident postmortems in Markdown.

English Grammar Drill

Free English grammar drills with instant feedback: articles (a, an, the), prepositions, subject-verb agreement, punctuation and jumbled sentence rearrangement.

English Idiom Explainer

Look up 45 English idioms with literal image, real meaning, a natural example, register guidance and what is actually known about the origin.

English Test Choice Helper

Compare IELTS, TOEFL iBT, PTE Academic and the Duolingo English Test on cost, format, speed and acceptance for your destination.

Enter SQL

Format, beautify, and compress SQL statement strings for easy viewing or filling.

Entry Requirement Checklist

Visa, e-visa, documents and customs rules for Indians visiting the Maldives, Sri Lanka, Bhutan, Qatar, Oman, Egypt, Kenya, Philippines, Taiwan and Azerbaijan.

Enum Constraint Builder

Define allowed values once and get the matching LLM prompt rule, JSON Schema enum, TypeScript union, Zod, Pydantic and SQL CHECK.

Env File Diff Tool

Compare two .env files side by side to find missing, extra and changed variables using dotenv parsing rules.

Env File Validator

Lint a .env file before deployment — syntax, quoting, duplicates, multiline values and parser-compatibility pitfalls.

Env to Compose Environment Converter

Convert .env entries into docker-compose environment blocks (list or map form) or env_file references, with $$ escaping.

Env to Example Generator

Turn a real .env into a safe .env.example — values stripped, comments and structure kept, secret keys always blanked.

Env to JSON Converter

Convert dotenv files to JSON and back, with optional type coercion and double-underscore nesting.

Env to Kubernetes Secret Converter

Convert a .env file into a Kubernetes Secret manifest with base64-encoded data or plain stringData, validated against k8s naming rules.

Env Var Naming Checker

Check environment variable names against POSIX rules, UPPER_SNAKE_CASE convention, reserved names and risky prefixes.

EPF Calculator

Project your EPF corpus at retirement with the real 12% split, EPS cap, yearly interest and EEE tax status.

EPF Claim Rejection Reason Decoder

Decode any EPFO claim rejection remark into what it means, who has to fix it — member, employer or EPFO field office — and the exact correction route.

EPS Pension Calculator

Estimate your monthly EPS-95 pension from pensionable salary and years of service, with early/deferred pension and family pension.

Epworth Sleepiness Scale

Rate your chance of dozing in eight everyday situations to get an Epworth score out of 24 with its sleepiness band.

Ergonomic Height Calculator

Find the right chair height, monitor height and bicycle saddle height from your body measurements.

Error Log Pattern Grouper

Group recurring error-log patterns locally and inspect their frequency, severity, and examples.

ESIC Contribution Calculator

Estimate employee and employer ESIC contributions from monthly wages with wage-limit and rate guidance.

ETH Gas Now

See current Ethereum gas fees across slow, normal and fast tiers.

EV Battery Degradation Analyzer

Estimate range and battery capacity trends from your EV's charge logs.

EV Charging TOU Optimizer

Calculate a lower-cost EV charging schedule around your time-of-use tariff windows.

EV Road-Trip Charge Planner

Plan charging stops along a route from your battery size, range and each leg.

Event Planner

Turn a guest list into floor space, tables, staff, catering quantities and a costed budget with contingency.

Event Video Delivery Planner

Turn an event date into a dated deliverables schedule with edit-hour estimates, start-by dates and a capacity check.

Everyday Life Prompt Builder

Build AI prompts for budgeting, meal plans, workouts, travel itineraries, recipes, gifts, journaling, parenting, pet care, gardening, decluttering and wedding planning.

Evidence Chain Organizer

Organize evidence identifiers, recorded digests, and chronological custody events locally, with reference checks, canonical JSON, and an optional SHA-256 event hash chain.

Exam & Admission Document Checklist

Document checklists for JEE, NEET, UPSC, SSC, railway, bank and state PSC applications, scholarships, school admission, counselling, interviews, physical tests and exam day.

Exam Answer Presentation Checker

Self-check the presentation of an exam answer — structure, headings, diagrams and underlining — and get a weighted score.

Exam Attempt Cost Tracker

Total what each exam attempt really cost — form fees, coaching, test series, books, travel and stay — across all attempts.

Exam Centre Travel Planner

Plan the journey to your exam centre with a buffer, a backup route and a switch-by time, worked back from the gate-closing time.

Exam Clash Detector

Spot same-day clashes and dangerously tight gaps across all the exams you have applied for.

Exam Countdown

Live countdown and study plan for JEE, NEET, UPSC, SSC CGL, CAT, GATE, CLAT, CUET, NDA/CDS, bank, railway, board, TET and state PSC exams.

Exam Day Checklist

Admit card, ID, photos, stationery and dress code checklist for JEE, NEET, CAT, SSC, bank, railway and board exam day.

Exam Day Meal Planner

Work backward from your exam reporting time to a light, steady-energy meal and hydration timeline.

Exam Hall Rough Work Planner

Plan a numbered zone layout for your rough sheets so every calculation is findable and nothing is recomputed.

Exam Motivation Milestone Board

Set prep milestones between today and exam day, see target dates and whether you are ahead, on track or behind.

Exam Result Day Support Planner

Plan result day before it arrives — who to have around, how to check the score, and a first move for every outcome.

Exam Revaluation Application Generator

Draft a rechecking or re-evaluation application with subject marks, fee totals, window deadlines and the projected new percentage.

Exam Score Analyzer

Analyze your exam performance with grades, insights, and interactive charts.

Exam Score Needed Calculator

Find the final exam score you need to reach your target overall grade in a course.

Exam Stress Reflection Prompts

Guided journalling prompts to name exam pressure, sort what you control and turn worry into one concrete next action.

Exam To Job Mapping Explorer

See which posts each major Indian recruitment exam leads to, with pay level, entry basic pay and job profile.

Excel Formula

Get the Excel formulas Easily

Excel to Chart Converter

Convert Excel (XLSX, XLS) and CSV files into beautiful interactive charts. Customize chart styles, edit data, and export as PNG or SVG.

Excel to HTML Converter

Convert XLS/XLSX spreadsheets into HTML tables to easily preview and transfer.

Excel to PDF Converter

Convert Excel spreadsheets into structured PDF documents. This utility parses multiple sheets and renders them seamlessly without any watermarks.

Excess Baggage Cost Estimator

Estimate excess baggage charges on IndiGo, SpiceJet, Akasa Air, Emirates, Etihad, Singapore Airlines, Thai, Turkish, British Airways and Ryanair, prepaid vs at the airport.

Excuse Generator

Generate creative and believable excuses for any situation. Choose from categories like work, school, social, or dates.

Exhaust Fan Size Calculator

Size a kitchen or bathroom exhaust fan from room volume and air changes per hour, with duct diameter and fan body size.

EXIF Data Viewer

Inspect image metadata including camera, date, and GPS fields.

EXIF Timestamp & Geotag Editor

Write a sidecar file recording corrected dates and GPS coordinates for photos you own, without changing the originals.

Exit Interview Response Planner

Rank your real reasons for leaving, pick how candid to be, and get measured answers to the standard exit interview questions.

Expanse Tracker

Provides information about Expanse game

Expense Ratio Impact Calculator

See how much a mutual fund expense ratio quietly eats from your long-term corpus, and what a direct plan saves.

Expense Report Generator

Build a claimable expense report with category totals, GST input credit, advance settlement and cash-limit checks.

Experience Letter Format Generator

Produce an employer experience certificate with tenure computed per designation, gaps and overlaps flagged, and a verification-ready summary line.

Exponent Calculator

Raise any number to any power, including negative and fractional exponents, with exact big-integer and fraction answers, scientific notation and steps.

Exposure Triangle Guide

Learn how aperture, shutter speed, and ISO interact with live exposure feedback and scene presets.

Express Route Scaffold Generator

Generate an Express router with validation, an async wrapper, correct status codes and four-argument error middleware.

Extension Cord Load Checker

Check whether the appliances on one extension board exceed its amp rating, the cord ampacity, the 80% continuous rule or safe voltage drop.

Eye Break Timer

A screen break timer built on the 20-20-20 rule, with routines tuned for coders, designers, gamers and students.

Eye Exercise Routine Builder

Build a timed daily routine from focus shifts, palming, figure-of-eight, warm compress and blink drills, with a running order and total time.

Eye Strain Study Planner

Plan a study session that alternates screen and paper blocks, with 20-20-20 micro-breaks and rest gaps to cut eye strain.