Tool Guides & Privacy Playbooks

Shift subtitle timing, correct drift, change the frame rate, join files, check captions for common faults, and convert between SRT and VTT in your browser.

Cut and join MP3 files, trim an audio clip to the seconds you want, turn M4A or FLAC into WAV, and edit the ID3 tags on a track, all in your browser.

Merge PDFs, extract pages, build a PDF from images, and rotate, reorder, delete, number, watermark or retitle pages in your browser.

Resize, compress and convert images, fit a photo under a KB limit at exact pixels and DPI, crop and rotate them, and make a plain-colour background transparent.

Inspect and convert document text: Markdown, HTML, plain text and structured document fields.

Read the document properties, XMP packet, dates and file identifier held inside a PDF, and strip all of them out again, in your own browser tab.

Clean and reshape tabular data: CSV to JSON, column edits, deduplication and format conversion.

File utilities: hashes and checksums, size and type inspection, filename and path handling.

Case conversion, word and character counts, text comparison, cleanup and formatting helpers.

Base64, UUIDs, Unix timestamps, hashes, JSON and SQL formatting, and other everyday developer conversions.

robots.txt and meta tag builders, Open Graph previews, URL encoding and other webmaster helpers.

QR codes for links, contacts, Wi-Fi and payments, plus common barcode formats, rendered as SVG.

Percentages, ratios, unit conversion and everyday arithmetic calculators.

Loan and EMI schedules, compound interest, invoices, margins and tax estimates.

Date differences, age, working days, timezone comparison and birthday number arithmetic.

BMI, BMR, TDEE and ideal body weight formula results. Numbers only, not medical advice.

Periodic table lookup, molecular weight, scientific unit conversion and physics formulas.

IFSC and PIN code lookup, HRA exemption, rent receipts and similar paperwork helpers.

Caption and hashtag helpers, CPM and engagement maths, and profile QR codes.