All Tools Directory
Every tool operates 100% locally in your browser memory via WebAssembly and JavaScript. No files or personal data are ever uploaded to any cloud server.
Candidate Photo & Signature Pro Studio
Official candidate photo & signature studio for SSC, UPSC, Banking, Railway, and State PSCs. Includes live Name & DOP auto-stamping bar with 90-day freshness checker, face guides, and pre-submission checklist.
Govt Exam Photo Resizer & Cropper
Comprehensive client-side passport photo resizer with preset formats for UPSC, SSC, Railway RRB, IBPS, SBI, CTET, NEET, and State PSCs. Custom dimensions, target KB compression, and DOB/DOP name stamper.
Govt Exam Signature Resizer & Ink Booster
Resize, crop, and boost clarity on signature images for standard government exam application portals. Features auto ink darkness booster, background white threshold, and strict 10-20 KB size limiter.
SSC Photo & Signature Resizer Suite
Complete all-in-one suite to crop, resize, and compress candidate photos & signatures to standard SSC format specifications (20-50 KB & 10-20 KB) with date/name stamper.
UPSC Photo & Signature Resizer Suite
UPSC candidate photo and signature dimension adjuster, cropper, and KB compressor complying with Union Public Service Commission format guidelines.
Banking & IBPS/SBI Exam Photo Suite
All-in-one image and signature dimension validator and file size compressor for IBPS, SBI PO/Clerk, and RBI recruitment portals.
RRB Railway Photo & Signature Suite
Precision dimension resizer and 20-50 KB compressor for Railway Recruitment Board (RRB NTPC, Group D, ALP) candidate photographs.
National Govt Exam Photo & Signature Suite
Universal photo and signature resizing engine with instant presets for CTET, NEET, CUET, UGC NET, and State PSC examinations.
Images to Multi-Page PDF Binder & Booklet Creator
Bind multiple JPG, PNG, and WebP photos into a clean, custom-formatted PDF booklet with visual drag-and-drop reordering, page margins, and orientation control in local memory.
Text to PDF
Type or paste rich textual notes, essays, or code blocks to generate clean formatted PDF files with custom margins.
Merge PDF
Combine multiple PDF documents into one continuous file. Reorder files before combining entirely in browser memory.
Split PDF
Separate specific page intervals or extract single standalone pages from heavy PDF documents in seconds.
Delete PDF Pages & Auto Blank Page Remover
Visually select and remove unwanted pages or automatically detect and delete empty blank scanned pages from any PDF in 100% client-side RAM.
Extract PDF Pages
Isolate and export key sections or certificate pages into a brand new standalone lightweight PDF.
Rotate PDF Pages
Fix upside-down or sideways scanned documents by rotating individual or all pages clockwise or counter-clockwise.
Duplicate PDF Pages
Clone specific form templates, slips, or worksheet pages multiple times within the same document.
PDF Page Organizer, Note Page Interleaver & N-Up Studio
Visual drag-and-drop workbench to reorder PDF pages, insert or interleave Ruled/Blank/Dot-Grid note pages after lecture slides, and compose 2-Up to 16-Up handout sheets in browser RAM.
PDF to JPG
Convert PDF pages into high-resolution JPG images with selectable DPI quality and instant ZIP batch download.
PDF to PNG
Render PDF vector pages into pixel-perfect lossless PNG bitmaps directly inside the browser.
PDF Page Screenshot
Capture clean snapshot crops of figures, tables, or diagrams from any PDF page without desktop snipping tools.
PDF Text Extractor
Extract raw plaintext content from selectable PDF documents for easy copying, search, and note-taking.
PDF Metadata Sanitizer & Viewer
Inspect and permanently sanitize hidden PDF properties including author names, software fingerprints, creation timestamps, and tracking tags in private browser RAM.
PDF Page Counter
Quickly tally total page counts across multiple batch PDF files before bulk printing or submission.
Image Compressor
Versatile client-side image compression with target KB slider, live quality preview, and instant download.
Image Resizer
Pixel and percentage-based image resizer with aspect ratio lock, bilinear smoothing, and format selector.
SIP Calculator
Calculate expected maturity wealth from systematic monthly mutual fund investments using compounding formulas.
CAGR Calculator
Calculate the Compound Annual Growth Rate between initial value, final value, and investment duration in years.
XIRR Calculator
Determine the Extended Internal Rate of Return for irregular cash inflows, dividend payouts, and redemptions.
Mutual Fund Return Calculator
Estimate returns across equity, debt, and hybrid mutual fund categories with historical benchmark comparisons.
Inflation Calculator
Calculate how inflation erodes purchasing power over 5, 10, 20, or 30 years and discover required future living budgets.
Loan EMI Calculator (Home, Car, Personal, Education)
Comprehensive loan EMI calculator with instant presets for Home Loans (8.5%), Car Loans (9.0%), Personal Loans (12%), and Education Loans (10%). Includes monthly & yearly amortization schedule and principal vs interest visual breakdown.
Home Loan EMI Calculator
Compute monthly installment (EMI), total interest payable, and full year-by-year principal breakdown for home financing.
Personal Loan EMI Calculator
Plan short-to-medium term personal loan repayments, comparing bank interest rates and total borrowing costs.
Car Loan EMI Calculator
Calculate auto loan monthly payouts after down payment, factoring in dealer processing charges and interest rates.
Education Loan EMI Calculator
Simulate student loan repayment schedules accounting for study period moratoriums and Section 80E tax deductions.
Loan Prepayment Calculator
Discover how part-prepayments and annual lump sums drastically cut down loan tenure and save lakhs in interest.
Loan Amortization Calculator
Generate a complete mathematical amortization ledger tracking monthly principal repayment and interest splits.
Income Tax Calculator
Calculate accurate income tax liability under Indian tax slabs with standard deduction, 87A rebate, and surcharge.
GST Calculator
Calculate GST amount and total billing value for 5%, 12%, 18%, and 28% slabs in both inclusive and exclusive modes.
FD Calculator
Compute fixed deposit maturity value with quarterly, monthly, or annual compounding and senior citizen rates.
RD Calculator
Calculate maturity payout and interest earned on recurring monthly post office or bank deposits.
PPF Calculator
Project 15-year tax-free maturity corpus under Public Provident Fund (PPF) with annual compounding and 5-year extensions.
Salary/CTC Calculator
Deconstruct annual Cost to Company (CTC) into Basic Pay, HRA, Special Allowance, PF, and Gratuity components.
Scan Document with OCR
Client-side optical character recognition (OCR) extracting selectable plaintext from scanned marksheets, receipts, hall tickets, and documents in browser RAM.
Markdown Live Previewer
Side-by-side interactive Markdown editor with live rendered HTML preview, heading structure, tables, task lists, and instant formatting.
Photo + Signature Combiner
Combine candidate photograph and signature into a single unified official exam slip (side-by-side or stacked) with name and date stamp.
Protect PDF
Secure and encrypt PDF documents with User (open) and Owner (permissions) passwords directly in browser RAM with zero server transmission.
Unlock PDF
Remove passwords, permissions, and security restrictions from PDF files locally in browser memory without sending data to any cloud servers.
Watermark PDF & Official Rubber Stamp Studio
Stamp diagonal text watermarks, custom logos, or vector-sharp Circular & Rectangular Official Seals (APPROVED, VERIFIED, PAID, RECEIVED with live date stamp) across PDF pages in browser RAM.
Smart PDF Compressor & Size Reducer
Reduce PDF file sizes with lossless Stream Optimization, Web/Email presets (<2MB), and WhatsApp presets (<1MB) in browser RAM.
Crop PDF
Crop PDF page margins, trim white borders, and reframe multi-page documents directly in your browser. Select all pages, odd pages, or even pages with zero file uploads.
Bates Numbering & Custom Pagination Stamper
Stamp official legal Bates numbers, prefixes, suffixes, zero-padded digits, and custom pagination (Page X of Y) onto any PDF locally in browser RAM with 6-point placement.
PDF to Word
Convert PDF documents to editable Microsoft Word (.doc) files completely in your browser. 100% client-side text extraction with zero server uploads and complete privacy.
Sign PDF (Digital Signature Studio)
Sign PDF documents online for free. Draw your digital signature with smooth ink, type in cursive script, or upload a photo of your signature with auto-background removal. Drag, resize, and stamp on any PDF page.
Redact PDF (Privacy Shield & Blackout Tool)
Permanently blackout sensitive text, Aadhaar numbers, PAN cards, phone numbers, and private zones on PDF documents. Multi-page interactive canvas with deep raster flattening for 100% tamper-proof security in local RAM.
Flatten PDF (Lock Forms & Annotations)
Flatten interactive PDF forms, AcroForms, signatures, comments, and annotations into static uneditable background content. Prevents form alteration and tampering before submission.
Left Thumb Impression (LTI) & Fingerprint Enhancer
Clean, isolate, and boost clarity on candidate Left Thumb Impression (LTI) scans and mobile photos. Auto removes dirty gray paper shadows, sharpens blue/black ink ridges, and locks file size strictly to 10-20 KB for SSC, RRB, IBPS, Police, and State PSC application portals.
Passport Photo 4x6 & A4 Print Sheet Studio
Convert 1 single passport photo into a print-ready 4x6 inch (6 or 8 photos) or A4 sheet (12 or 16 photos) at 300 DPI. Features dashed scissor cutting guidelines, 1-click browser printing, and high-resolution JPEG download for home printers and cyber cafes.
PDF Booklet Maker & Saddle-Stitch Imposition Studio
Convert any multi-page PDF document into a print-ready folded booklet or brochure. Arranges pages in 2-up saddle-stitch imposition order (A4/Letter landscape) with dashed spine folding guides, binding gutter margins, and auto multiple-of-4 padding.
PDF Page Resizer & Note-Taking Margin Studio
Resize PDF page dimensions between US Letter, A4, Legal, and A3 standards without content clipping. Add wide 45mm note-taking margins with optional handwriting guide lines for student classroom prints and official document submission compliance.
PDF Dark Mode & Night Inverter Studio
Invert PDF colors and convert bright white documents into eye-friendly Dark Mode (OLED Pitch Black, Warm Amber, Solarized Dark). Eliminates night-time eye fatigue for students and researchers reading extensive ebooks and notes on laptops or tablets.
PDF to Grayscale, B&W Contrast & Print Ink-Saver Studio
Convert colored PDFs into print-ready Monochrome Grayscale, High-Contrast Photocopy B&W (scan shadow cleaner), or Eco Toner-Saver PDFs in local browser RAM. Calculates estimated printer toner savings and whitens dirty gray scan backgrounds.
Compare Two PDFs (Visual Pixel & Word Diff Studio)
Compare two PDF versions side-by-side in 100% private browser RAM. Highlights word-by-word text additions (+green) and deletions (-red) alongside a Visual Pixel-Difference Redline Overlay to catch altered clauses, signatures, or stamps.
PDF Table to Excel & CSV Coordinate Extractor
Extract structured tables, bank statements, marksheets, and invoices from PDF files into editable Excel (.CSV / .TSV) spreadsheets using 2D (X, Y) coordinate clustering in browser RAM with zero server upload.
Interactive Fillable PDF Form Builder (AcroForm Studio)
Turn any static PDF into an interactive, fillable PDF form in browser RAM. Drag and position native AcroForm Text Inputs, Checkboxes, and Dropdown menus onto any page so recipients can type and fill the PDF in Adobe Reader or Chrome.
IBPS, SBI & RBI Handwritten Declaration Scanner & 50-100 KB Studio
Official IBPS PO/Clerk/SO, SBI PO/Clerk, RBI Grade B, NABARD, and LIC handwritten declaration text generator with audio dictation, adaptive mobile scan paper whitener, black ink booster, and strict 800×400 px (10×5 cm, 200 DPI, 50–100 KB) binary lock.
Govt Exam Certificate & Marksheet PDF Size Lock (50-300 KB Builder)
Convert 1–6 mobile camera photos or scans of your Caste Certificate (OBC-NCL/SC/ST), EWS Certificate, Domicile, PwBD, or 10th/12th Marksheet into a clean A4 PDF locked strictly between portal Min KB and Max KB limits (50–300 KB for NTA/UPSC/SSC) in browser RAM.
Govt Exam Age Limit, Relaxation & Attempt Eligibility Calculator
Calculate your exact chronological age (Years, Months, Days) on official UPSC, SSC, IBPS, SBI, RBI, and RRB cut-off dates (1 Jan / 1 Aug / 1 Jul) with OBC (+3y), SC/ST (+5y), PwBD (+10-15y), and Ex-Servicemen age relaxation and remaining attempts matrix.
Competitive Exam OMR Score, Negative Marking & Accuracy Calculator
Calculate net OMR score, negative marking penalty (1/3rd, 1/4th, 1/5th), accuracy percentage, cut-off margin, and 50-50 option elimination expected value for UPSC Prelims (GS & CSAT), SSC CGL/CHSL, NEET UG, JEE Main, CUET, IBPS, and RRB CBT exams.
JWT Debugger & Expiration Inspector
Decode and inspect RFC 7519 JSON Web Tokens (JWT) client-side in RAM. Live expiration countdown, header/payload JSON formatting, and signature verification with zero server upload.
AI Prompt PII & Secret Scrubber
Automatically detect and mask API keys (OpenAI, AWS, GitHub, Stripe), tokens, database URIs, passwords, emails, phone numbers, and PII before submitting prompts to ChatGPT, Claude, or Gemini.
Cryptographic Hash & HMAC Generator
Compute high-speed SHA-256, SHA-512, SHA-384, SHA-1, and MD5 hashes and HMAC signatures for text or files up to 2GB using the browser's native Web Crypto API with instant checksum verification.
JSON Formatter, Validator & Tree Diff Studio
Format, validate, repair, and diff JSON documents with precise line and column error indicators, 2/4-space indentation, minification, tree structure view, and key sorting.
Regex Visual Tester & Explainer Studio
Live regular expression tester with real-time match highlighting, capture group extraction, flags toggling (g, i, m, s, u), pattern breakdown explainer, and multi-language code generator.
Base64, Hex & Data URL Binary Studio
Convert text and binary files (images, audio, PDF) to and from Base64, Hexadecimal, UTF-8, and Data URLs. Built-in image preview, byte size calculation, and safe URI formatting.
CSV & Dataset Privacy Anonymizer
Sanitize and mask sensitive personally identifiable information (PII), names, emails, phone numbers, and IDs in CSV datasets locally in RAM before sharing with AI models or third parties.
CSV to SQL Query Generator Studio
Convert CSV spreadsheets and tabular files into optimized, syntactically escaped SQL INSERT statements for PostgreSQL, MySQL, SQLite, and BigQuery with type inference and batch chunking.
CSV Data Cleaner & Deduplicator
Identify and purge duplicate rows across whole records or custom composite key columns with whitespace normalization, case-sensitivity toggles, and detailed audit statistics.
CSV ↔ JSON Streaming Studio
Bidirectional conversion between RFC 4180 CSV tables and JSON object arrays. Features automatic number/boolean type inference, dot-notation nested properties, and formatted output.
TSV, CSV & Delimiter Normalizer
Convert between Comma (CSV), Tab (TSV), Semicolon (European Excel), and Pipe (PSV) delimiters with auto-detection, RFC 4180 quote preservation, and zero data corruption.
CSV Table Difference & Reconciliation
Reconcile two CSV spreadsheets side-by-side by primary key identifier. Pinpoint added, deleted, and modified rows with cell-level highlights and exportable delta audit reports.
UPI Payment QR Code Pro Generator
Generate instant, customizable UPI payment QR codes compliant with official NPCI specs. Set custom amounts, payee VPA, transaction notes, and export high-res PNG printables locally.
Barcode Studio & EAN-13 Checksum Generator
Generate CODE128, EAN-13, UPC-A, and CODE39 barcodes with automated Modulo-10 checksum calculation and validation. 100% client-side vector Canvas and PNG download.
Shamir's Secret Sharing (M-of-N Key Splitter)
Cryptographically split master passwords, recovery seed phrases, and confidential keys into N threshold shares over Galois Field GF(256) where any K shares reconstruct the secret.
Zero-Knowledge AES-256 File Encryption Vault
Military-grade client-side file and document encryption using AES-256-GCM and PBKDF2 with 100,000 SHA-256 iterations. Encrypt photos, PDFs, and text into private .vedvault containers.
CSV & Spreadsheet to Markdown Table Converter
Convert CSV, TSV, and Excel spreadsheets into clean GitHub-flavored Markdown tables with automatic delimiter detection, numeric right-alignment, and pipe escaping in browser RAM.
Tabular Dataset & CSV Profiler Studio
Instantly inspect and audit CSV and Excel datasets in browser memory. Computes null percentages, distinct value cardinality, numeric min/max/mean/median, and inferred SQL types.
Regex ReDoS Vulnerability & Catastrophic Backtracking Scanner
Scan and audit regular expressions for catastrophic polynomial and exponential backtracking risks (ReDoS). Evaluates nested quantifiers, overlapping groups, evil string payloads, and safe DFA rewrites in browser RAM.
Steganography Pixel Vault (Hide Encrypted Secrets in Photos)
Hide and extract encrypted confidential text, passwords, and cryptocurrency recovery seeds inside lossless image pixels using Least Significant Bit (LSB) encoding and AES-256-GCM encryption in browser RAM.
Indian ID & Tax Checksum Validator (Aadhaar, PAN & GSTIN)
Client-side mathematical verification of 12-digit Indian Aadhaar numbers via the Verhoeff algorithm (Dihedral D5 group), PAN card entity codes, and 15-character GSTIN tax identifiers without cloud server transmission.
PDF Privacy & Legal Metadata Scrubber
Strip hidden author names, GPS location metadata, creation timestamps, editing software fingerprints, and XML XMP streams from sensitive PDF legal briefs, tenders, and contracts in local browser RAM.
Bulk CSV to Barcode & QR Sticker Sheet Generator
Batch-convert CSV or Excel product catalogs (Product Name, SKU/Code, MRP Price) into printable A4 24-up or 40-up retail barcode and QR code sticker sheets with automatic GS1 EAN-13 checksums in local RAM.
GSTR-2B vs Purchase Register Reconciliation Studio
Reconcile Books Purchase Register CSV/Excel against GSTR-2B Portal data 100% locally in browser RAM. Matches Supplier GSTIN and normalized Invoice Numbers with rounding tolerance to pinpoint eligible ITC, mismatches, and missing invoices.
PDF Invoice QR & Verification Stamp Studio
Embed dynamic NPCI UPI Payment QR codes or document verification URLs alongside customizable APPROVED, VERIFIED, or PAID official seal stamps onto PDF invoices, certificates, and contracts 100% in browser RAM.
Env to Kubernetes Secret Generator
Convert .env files or key-value environment variables into Kubernetes Secret YAML or JSON 100% in browser RAM. Supports Base64 encoding, stringData, custom namespace, and immutable secret flags.
HAR & Server Log PII Redactor
Scrub sensitive authentication tokens, session cookies, Bearer credentials, API keys, passwords, and IP addresses from HTTP Archive (.har) and server log files locally before sharing with teams.
OpenAPI & Swagger Security Auditor
Audit OpenAPI 3.0/3.1 and Swagger 2.0 specifications against 24 security and hygiene checks in browser memory. Detects missing auth scopes, unencrypted endpoints, missing rate limits, and unconstrained schemas.
Aadhaar Card Offline Redaction & Masker
Mask the first 8 digits of Aadhaar numbers on e-Aadhaar PDF documents and scanned identity cards 100% client-side. Complies with UIDAI and RBI data privacy guidelines leaving only the last 4 digits visible.
Online Exam Proctoring Readiness Tester
Pre-exam self-test diagnostic station for candidates. Tests webcam feed, microphone decibel levels, screen sharing permissions, WebRTC loopback, network latency, and browser security for online proctored exams.
Printable OMR Answer Sheet Generator
Generate high-resolution printable vector A4 OMR bubble sheets for mock tests and exams (50, 100, 150, or 200 questions). Features corner calibration markers, barcode tracking, candidate roll numbers, and answer keys.
Bank Statement Privacy Analyzer & Categorizer
Analyze PDF and CSV bank statements from Indian banks (SBI, HDFC, ICICI, Axis, PNB) 100% locally in browser memory. Computes Average Monthly Balance (AMB), monthly cash flow, recurring debits, and spending categories.
GST E-Invoice Signed B2B QR Code Verifier
Decode and cryptographically verify signed B2B GST E-Invoice QR codes. Extracts Invoice Reference Number (IRN), Supplier GSTIN, Buyer GSTIN, document dates, total invoice value, and itemized HSN tax breakdown.
Tally Prime & ERP 9 XML to Excel Converter
Convert exported DayBook and Ledger XML files from Tally Prime and Tally ERP 9 into clean formatted Excel (.xlsx) workbooks 100% in browser RAM with automatic debit/credit balance reconciliation.
SQLite & Apache Parquet Database Studio
Inspect and query SQLite (.db, .sqlite) and Apache Parquet files in browser memory without sending data to servers. Features schema navigation, interactive SQL query editor, tabular sorting, and CSV export.
Image EXIF Metadata Stripper & Privacy Cleaner
Inspect and sanitize privacy-sensitive EXIF metadata from JPEG, PNG, and WebP images. Strips GPS coordinates, camera serial numbers, device model, and capture timestamps without re-compression quality loss.
Audio Silence Trimmer & Pause Cutter
Trim dead air and pauses from lectures, voice recordings, and candidate audio submissions in browser RAM using Web Audio API. Features configurable decibel threshold, interactive waveform canvas, and WAV export.