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TECHWEB365 · ONLINE TOOLS

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Search calculators, converters, generators and useful online utilities. Choose a category or search for the task you need.

109 tools available
Calculators & Math

Age Calculator

Calculate age from a date of birth and a reference date. How to use this calculator Enter the values in the fields, then…

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Audio Tools

Audio Format Converter

Export decoded audio as WAV in your browser.Audio is processed in your browser. The selected audio file is not uploaded to the TechWeb365…

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Audio Tools

Audio Merger

Combine two audio clips sequentially into one WAV file.Audio is processed in your browser. The selected audio file is not uploaded to the…

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Audio Tools

Audio Recorder

Record audio from your microphone and download it.Audio is processed in your browser. The selected audio file is not uploaded to the TechWeb365…

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Audio Tools

Audio Silence Trimmer

Trim the start and end of an audio clip by time.Audio is processed in your browser. The selected audio file is not uploaded…

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Audio Tools

Audio Speed Changer

Change the playback speed of audio.Audio is processed in your browser. The selected audio file is not uploaded to the TechWeb365 server by…

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Audio Tools

Audio Trimmer

Trim an audio file by choosing start and end times.Audio is processed in your browser. The selected audio file is not uploaded to…

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Audio Tools

Audio Volume Booster

Adjust audio playback gain and export a processed recording.Audio is processed in your browser. The selected audio file is not uploaded to the…

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Audio Tools

Audio Waveform Viewer

View a waveform and inspect audio duration.Audio is processed in your browser. The selected audio file is not uploaded to the TechWeb365 server…

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Developer Tools

Base64 Encoder and Decoder

Encode text to Base64 or decode Base64 text.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential production…

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Calculators & Math

BMI Calculator

Calculate body mass index from height and weight.How to use this calculatorEnter the values in the fields, then select Calculate. Results are estimates…

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Developer Tools

Color Converter

Convert HEX, RGB, and HSL color values and preview the result.nnHow to use Color ConverterEnter text or choose a file as requested by…

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Calculators & Math

Compound Interest Calculator

Estimate compound growth from principal, rate, and time.How to use this calculatorEnter the values in the fields, then select Calculate. Results are estimates…

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Developer Tools

CSS Gradient Generator

Create a CSS linear gradient and copy the ready-to-use CSS.nnHow to use CSS Gradient GeneratorEnter text or choose a file as requested by…

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Developer Tools

CSS Gradient Generator

Create a CSS linear gradient and copy its code.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential…

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Office & Data Tools

CSV Column Extractor

Keep selected columns from CSV data.Paste your data or select a local file. Processing takes place in your browser; this tool does not…

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Office & Data Tools

CSV Duplicate Row Remover

Remove repeated rows from CSV text.Paste your data or select a local file. Processing takes place in your browser; this tool does not…

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Office & Data Tools

CSV Row Sorter

Sort CSV rows by a selected column.Paste your data or select a local file. Processing takes place in your browser; this tool does…

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Developer Tools

CSV to JSON Converter

Convert CSV rows into structured JSON in your browser.nnHow to use CSV to JSON ConverterEnter text or choose a file as requested by…

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Office & Data Tools

CSV to JSON Converter

Convert comma-separated data into JSON objects.Paste your data or select a local file. Processing takes place in your browser; this tool does not…

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Office & Data Tools

CSV to TSV Converter

Convert comma-separated data into tab-separated values.Paste your data or select a local file. Processing takes place in your browser; this tool does not…

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Developer Tools

CSV Viewer

Open and preview CSV files in a searchable table.nnHow to use CSV ViewerEnter text or choose a file as requested by the tool.Choose…

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Office & Data Tools

CSV Viewer

Open and preview CSV files in your browser.Paste your data or select a local file. Processing takes place in your browser; this tool…

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Calculators & Math

Date Difference Calculator

Calculate the number of days between two dates.How to use this calculatorEnter the values in the fields, then select Calculate. Results are estimates…

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Generators

Disclaimer Generator

Create a general website disclaimer draft. Adapt it to your content, products, affiliate relationships and jurisdiction. This template is not legal advice and…

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Calculators & Math

Discount Calculator

Calculate sale price and savings from a discount percentage.How to use this calculatorEnter the values in the fields, then select Calculate. Results are…

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Calculators & Math

EMI Calculator

Estimate monthly loan installments using principal, interest, and tenure.How to use this calculatorEnter the values in the fields, then select Calculate. Results are…

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PDF Tools

Extract PDF Pages

Extract a range of pages from a PDF into a new file.This tool processes selected PDF files in your browser. Your selected files…

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Calculators & Math

GST Calculator

Calculate GST amount and inclusive or exclusive totals.How to use this calculatorEnter the values in the fields, then select Calculate. Results are estimates…

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Developer Tools

HTML Encoder and Decoder

Encode text for HTML contexts or decode HTML entities.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential…

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Developer Tools

HTML Minifier

Remove comments and excess whitespace from basic HTML source.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential…

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Image Tools

Image Compressor

Compress images online for smaller file sizes.Reduce image file size by adjusting output quality. Processing happens in your browser.How to use this toolSelect…

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Image Tools

Image Cropper

Crop an image by setting the crop rectangle.Set crop position and dimensions in pixels, then export the selected area.How to use this toolSelect…

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Image Tools

Image Dimensions Checker

Check image dimensions and file details.View the pixel dimensions, file type, file size, and aspect ratio of an image.How to use this toolSelect…

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Image Tools

Image Format Converter

Convert images between JPG, PNG, and WebP.Choose an output format and save a converted copy of your image.How to use this toolSelect an…

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Image Tools

Image Grayscale Converter

Convert a color image to black and white.Create a grayscale copy of your image in your browser.How to use this toolSelect an image…

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Image Tools

Image Resizer

Resize JPG, PNG, and WebP images online.Change image width and height in pixels while keeping the proportions when desired.How to use this toolSelect…

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Image Tools

Image Rotate and Flip

Rotate or flip images online.Rotate an image by 90-degree steps or flip it horizontally or vertically.How to use this toolSelect an image from…

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Developer Tools

Image to Base64 Converter

Convert an image file into a Base64 data URL locally.nnHow to use Image to Base64 ConverterEnter text or choose a file as requested…

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Image Tools

Image Watermark Tool

Add a text watermark to an image.Place customizable text over an image and download the result.How to use this toolSelect an image from…

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Generators

Instagram Caption Generator

Draft Instagram captions with a hook, helpful context and a call to action. Personalize the wording to match your voice before posting.nnHow to…

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Developer Tools

JSON Formatter and Validator

Format JSON with indentation and validate its syntax.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential production…

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Developer Tools

JSON to CSV Converter

Convert an array of JSON objects into a downloadable CSV file.nnHow to use JSON to CSV ConverterEnter text or choose a file as…

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Office & Data Tools

JSON to CSV Converter

Convert an array of JSON objects into CSV data.Paste your data or select a local file. Processing takes place in your browser; this…

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Developer Tools

Markdown Editor and Preview

Write Markdown and preview formatted headings, lists, links, and code.nnHow to use Markdown Editor and PreviewEnter text or choose a file as requested…

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PDF Tools

Merge PDF Files

Combine multiple PDF files into one PDF document.This tool processes selected PDF files in your browser. Your selected files are not uploaded to…

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Generators

Meta Description Generator

Create draft meta descriptions that summarize a page and include its main topic. Search engines may choose a different snippet, so keep the…

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Video Tools

Mute Video Tool

Remove audio from a video by exporting a muted playback recording.Video files are selected locally in your browser. Browser support for codecs and…

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Image Tools

Passport Photo Maker

Create a passport-style photo canvas.Fit a photo onto a white 35 × 45 mm-style canvas and download it. Check the exact photo specifications…

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Image Tools

Passport Photo Sheet Maker

Arrange multiple passport-style photos on an A4 sheet.Create a printable A4 canvas with repeated photo copies and adjustable spacing. Verify printer scaling and…

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PDF Tools

PDF Page Counter

Count the pages in a PDF file.This tool processes selected PDF files in your browser. Your selected files are not uploaded to the…

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Calculators & Math

Percentage Calculator

Calculate a percentage of a number or percentage change.How to use this calculatorEnter the values in the fields, then select Calculate. Results are…

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Generators

Privacy Policy Generator

Draft a basic privacy policy starting point for a website. You must customize it to match your actual data collection, cookies, analytics, advertising,…

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Developer Tools

Regex Tester

Test a JavaScript regular expression against sample text.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential production…

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PDF Tools

Rotate PDF Pages

Rotate all pages in a PDF and download a corrected copy.This tool processes selected PDF files in your browser. Your selected files are…

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Calculators & Math

Salary Calculator

Calculate annual and monthly salary breakdowns.How to use this calculatorEnter the values in the fields, then select Calculate. Results are estimates based on…

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Developer Tools

Secure Password Generator

Generate random passwords locally in your browser.nnHow to use Secure Password GeneratorEnter text or choose a file as requested by the tool.Choose the…

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Generators

SEO Title Generator

Generate search-friendly title ideas using a topic and target keyword. Choose a title that accurately matches the page and search intent; rankings are…

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Developer Tools

SHA-256 Hash Generator

Generate a SHA-256 hash from text in your browser.nnHow to use SHA-256 Hash GeneratorEnter text or choose a file as requested by the…

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Developer Tools

SHA-256 Hash Generator

Generate a SHA-256 digest from text using the Web Crypto API.This tool runs in your browser. Do not paste secrets, API keys, passwords,…

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Calculators & Math

Simple Interest Calculator

Calculate simple interest and total amount.How to use this calculatorEnter the values in the fields, then select Calculate. Results are estimates based on…

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PDF Tools

Split PDF

Split a PDF into separate page files packaged in a ZIP archive.This tool processes selected PDF files in your browser. Your selected files…

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Generators

Terms and Conditions Generator

Generate a simple terms-and-conditions draft for review. Customize it for your services, users, governing law and business model, and seek qualified legal advice…

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Developer Tools

Text Diff Checker

Compare two text blocks and inspect lines that differ.nnHow to use Text Diff CheckerEnter text or choose a file as requested by the…

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Calculators & Math

Tip Calculator

Calculate a tip and split a bill among people.How to use this calculatorEnter the values in the fields, then select Calculate. Results are…

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Office & Data Tools

TSV to CSV Converter

Convert tab-separated values into CSV data.Paste your data or select a local file. Processing takes place in your browser; this tool does not…

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Calculators & Math

Unit Converter

Convert common length, weight, and temperature units.How to use this calculatorEnter the values in the fields, then select Calculate. Results are estimates based…

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Developer Tools

Unix Timestamp Converter

Convert Unix timestamps to readable dates and back.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential production…

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Developer Tools

URL Encoder and Decoder

Encode or decode URL components.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential production data into online…

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Developer Tools

URL Slug Generator

Create a URL-friendly slug from a title.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential production data…

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Developer Tools

UUID Generator

Generate random UUID version 4 identifiers in your browser.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential…

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Video Tools

Video Dimensions Checker

Check video width, height, duration, and aspect ratio.Video files are selected locally in your browser. Browser support for codecs and export formats varies.How…

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Video Tools

Video Frame Preview Tool

Preview a video and capture frames as images.Video files are selected locally in your browser. Browser support for codecs and export formats varies.How…

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Video Tools

Video Metadata Checker

Inspect video duration, dimensions, and playback details.Video files are selected locally in your browser. Browser support for codecs and export formats varies.How to…

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Video Tools

Video Speed Preview

Preview a video at a different playback speed.Video files are selected locally in your browser. Browser support for codecs and export formats varies.How…

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Video Tools

Video Thumbnail Maker

Capture a still frame from a video and download it as an image.Video files are selected locally in your browser. Browser support for…

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Video Tools

Video to Audio Extractor

Extract an audio track from a video when your browser supports decoding it.Video files are selected locally in your browser. Browser support for…

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Video Tools

Video Trimmer

Trim a video by selecting a start and end time.Video files are selected locally in your browser. Browser support for codecs and export…

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Developer Tools

XML Formatter

Format XML with indentation using the browser XML parser.This tool runs in your browser. Do not paste secrets, API keys, passwords, or confidential…

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Generators

YouTube Hashtag Generator

Generate hashtag ideas for a YouTube video from its topic and keywords. Keep hashtags relevant and avoid misleading or unrelated tags.nnHow to use…

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Generators

YouTube Tags Generator

Generate relevant YouTube tag ideas from your topic and keywords. Tags are suggestions, not a ranking guarantee; use only tags that accurately describe…

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Generators

YouTube Title Generator

Create clear, clickable YouTube title ideas from your video topic and keywords. Review each suggestion for accuracy and avoid misleading clickbait.nnHow to use…

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