Free tools for Indian students: CGPA, attendance, citations and more

Indian academic admin runs on arithmetic nobody teaches you: converting CGPA for a form that wants percentage, working out whether you can skip Thursday and still clear 75%, formatting a bibliography the way your department insists on.

None of it is hard. All of it eats an evening. Here are free tools for each, with the catch that matters for each one.

CGPA, percentage and the conversion nobody agrees on

CGPA to percentage converter — and back again.

The catch: there is no single correct formula. CBSE uses CGPA × 9.5. Many universities use (CGPA − 0.75) × 10. Others publish their own table, and some refuse to convert at all and tell employers to accept the CGPA.

So before you put a number on an application, check what your university specifies. The tool supports the common formulas; it cannot know which one your institution recognises, and a form rejected for the wrong conversion costs more than the two minutes of checking.

GPA / SGPA calculator — credit-weighted, which is the part people get wrong. A 4-credit subject moves your SGPA twice as much as a 2-credit one, so a straight average of your grade points is not your SGPA. Works on 10-point and 4-point scales.

Marks percentage calculator — total, percentage, division and grade from subject-wise marks. Useful when a form wants "aggregate percentage" and you have a mark sheet with best-of-five rules to apply.

The 75% question

Attendance calculator answers both directions of it: how many classes you must attend from here to reach 75%, and how many you can miss and still be safe.

Worth being honest with yourself about the inputs. It calculates from the numbers you type; it does not know about the medical leave your department may or may not count, or that some institutions compute attendance per subject rather than overall. Check which rule applies to you — a figure that looks comfortable overall can hide one subject sitting at 68%.

While you are actually studying

Study timer — Pomodoro-style focus sessions with short and long breaks and a session counter. The point is not the technique, it is that a timer running makes stopping a decision instead of a drift.

Scientific calculator — trigonometry, logs, powers, roots, factorials, degrees and radians. For when your phone's calculator will not rotate and the exam is in three days.

Typing speed test — WPM and accuracy. If you are preparing for SSC, court or data-entry posts, the typing test is a scored component and most candidates practise it far too late. Accuracy carries more weight than raw speed in the scoring, which is the opposite of what people train for.

Text to speech — reads notes aloud in English, Hindi and other voices. Genuinely useful for revision on a commute, and for catching the sentences in your own writing that do not work when spoken.

Writing and submitting

Citation generator — APA, MLA and Harvard formatting for websites, books and journal articles. It formats what you give it; it does not verify that the source exists or that the author's name is spelled right, so check the output against the actual source. A bibliography of perfectly formatted wrong references is still wrong.

Word counter — words, characters and reading time, for assignments with a limit.

Text diff checker — shows exactly what changed between two versions of a document. Useful when a supervisor returns a draft and you want to see what they actually touched.

Image to text — OCR that reads Hindi as well as English, so a photographed page of notes becomes text you can search. Printed text works well; handwriting does not, and no OCR will reliably fix that.

Documents for admission and exam forms

Admission portals want a photo at an exact size, a signature under a KB limit and certificates as small PDFs. That is a whole process of its own, and getting the order wrong is what makes photos blurry — we wrote it up separately: photo, signature and document tools for Indian online forms.

All free, nothing uploaded

Every tool above runs inside your browser. Your mark sheets, notes and documents are processed on your own device and never sent anywhere — which also means no sign-up, no watermark and no daily limit.

The student tools are here, inside 507 free tools we build and publish alongside our client work.