All tools

Every ToolNinja tool in one place, grouped by category. All 72 tools run entirely in your browser — no login, no uploads, no data leaves your device.

India-specific (8)

RTI, affidavit, resume, leave applications — for Indian govt + everyday life

  • PAN Card Validator Check & decode PAN card number format.
  • NOC Letter Generator No Objection Certificate — vehicle, tenant, bank.
  • Self Declaration Self-declaration for address, income, gaps.
  • Rent Agreement 11-month leave & licence agreement.

    • PDF tools (9)

    Merge, split, compress, convert — everything runs on your device

    Image tools (8)

    Resize, compress, convert — JPG, PNG, WEBP — 100% on-device

    Finance & business (24)

    GST, EMI, SIP, HRA, CTC, invoices, quotations — Indian rules

  • Warning Letter Employee written warning letter PDF.
  • Experience Letter Experience & relieving letter PDF.
  • Offer Letter Job offer letter with CTC and joining date.
  • Appointment Letter Full joining letter with probation & notice.
  • Salary Certificate Income proof for loan, visa, rental.

    • Student tools (8)

    CGPA, word counter, case converter, pomodoro

  • Attendance % Calculator Check the 75% rule; bunk/recover count.
  • Marks % Calculator Marks to percentage, grade and CGPA.
  • Bonafide Certificate Student/employee bonafide certificate PDF.
  • Character Certificate School, employer or gazetted format.

    • Utility tools (15)

    QR, password, BMI, unit converter, bill splitter, more

  • Sleep Calculator Best bedtime from 90-min sleep cycles.
  • Fuel Cost Calculator Trip fuel cost, litres and per-person split.
  • Tip Calculator Tip, total and split; service charge note.

    • Guides (56)

    Har tool ke liye step-by-step guide — India-specific rules, fees, aur common mistakes