What counts as an online tool or utility here?

Anything that does a narrow, practical job for the visitor, usually in the browser and without a steep learning curve. Calculators, converters, PDF helpers, text cleaners and mailbox rescue services fit. Broad suites with many unrelated features tend to belong in a different category.

How do I pick the right subcategory for my product?

Go by what the visitor hands over and what comes back. Figures in, answer out is a calculator. Same content in a new format is a converter. Work aimed squarely at PDFs goes under PDF tools. Overlap can be covered with the extra-categories upgrade, $5.

How are products ordered on this page?

Newest listings come first by default. Visitors can re-sort by community votes instead, and votes can never be bought, so a paid launch does not buy a higher spot in that ranking. Filters let you narrow the list by subcategory.

How do I get my utility listed in this category?

Open /submit and give it your site's URL. An AI sketches the profile from that site, then you read through each field and rewrite whatever is off. Nothing goes live until you approve it. Choose this category, or one of its subcategories, as your main one.

What should I compare when choosing between similar tools?

Look at how plainly the tool explains what it does with your files or data, whether it works without forcing an account, and what limits it sets on size or volume. Check the result on something low-stakes first, and see whether the maker is reachable if it breaks.

Section · 52 launches

Online Tools & Utilities

Small, sharp web utilities from indie makers: the single-purpose gadgets people bookmark and quietly rely on.

Open sponsor spot. $19 for 7 days puts your company at the top of Online Tools & Utilities, labelled Sponsored. See how it works. It never moves a vote.

Newest first

Show the readers' favourites first

Number 1: CalculatorAI

AI workspace for trackers, calculators and financial documents

Calculators

DR 22 +1 (up) since last check 0 votes. Log in to vote for CalculatorAI in print
Number 2: ModelFormatConvert

Free online 3D model converter supporting OBJ, GLTF, GLB, FBX, 3DS, STL, 3DM, and PLY formats

File converters

DR 6 no change since last check 0 votes. Log in to vote for ModelFormatConvert in print
Number 3: GPA Calculate

Free online GPA calculator for students, teachers, and parents to track academic performance

CalculatorsUnited States

DR 50 −1 (down) since last check 0 votes. Log in to vote for GPA Calculate in print
Number 4: EasyFreeTools

Free browser-based tools for images, PDFs, QR codes, and text utilities

Online Tools & Utilities

DR 5 no change since last check 0 votes. Log in to vote for EasyFreeTools in print
Number 5: PitchCalc

Free roof pitch calculator for rise, run, degrees, slope, and multiplier

Calculators

DR 0 no change since last check 0 votes. Log in to vote for PitchCalc in print
Number 6: Size Convertly

Free size converter for clothing, shoes, rings, bras, accessories, sports gear, and bedding across US, UK, EU and international standards

Calculators

DR 17 +1 (up) since last check 0 votes. Log in to vote for Size Convertly in print
Number 7: uploadthefile.com

From file to live link in seconds

File converters

DR 8 −2 (down) since last check 0 votes. Log in to vote for uploadthefile.com in print
Number 8: MergePNG

Merge PNG, JPG and WebP images into a single file or PDF in your browser, with no upload and no sign-up.

File converters

DR 12 +2 (up) since last check 0 votes. Log in to vote for MergePNG in print
Number 9: Vedic Astrology Chart

Free Vedic astrology birth chart calculator with AI-powered interpretation

Calculators

DR 50 −1 (down) since last check 0 votes. Log in to vote for Vedic Astrology Chart in print
Number 10: OCRStack

Browser-based OCR tool for extracting text from PDFs and images

PDF tools

DR 8 no change since last check 0 votes. Log in to vote for OCRStack in print
Number 11: PDFKing

Free online PDF tools for merging, compressing, converting, and editing PDFs without sign-up or watermarks

PDF toolsIndia

DR 26 no change since last check 0 votes. Log in to vote for PDFKing in print
Number 12: RedactSense

Redact sensitive files in seconds with AI

PDF tools

DR 0 no change since last check 0 votes. Log in to vote for RedactSense in print
Number 13: 1001 Pro Calculators and Tools

All-in-one calculator app with 1,001 calculators offline, no ads, and no data collection

Calculators

DR 0 no change since last check 0 votes. Log in to vote for 1001 Pro Calculators and Tools in print
Number 14: SalaryHow

Understand your income

Calculators

DR 26 no change since last check 0 votes. Log in to vote for SalaryHow in print
Number 15: MoneyCrunchLab

Free financial calculators for mortgages, loans, savings, and retirement

CalculatorsFrance

DR 4 −1 (down) since last check 0 votes. Log in to vote for MoneyCrunchLab in print
Number 16: DocuNest

100% offline PDF editor with 26 built-in tools for editing, signing, merging and converting documents

PDF tools

DR 3 no change since last check 0 votes. Log in to vote for DocuNest in print
Number 17: MarkItDown Online

Convert files, webpages, tables, and API sources into clean Markdown

File converters

DR 40 +9 (up) since last check 0 votes. Log in to vote for MarkItDown Online in print
Number 18: Combine JPG

Free online tool to merge multiple JPG, JPEG, or PNG images into one file

File converters

DR 25 −1 (down) since last check 0 votes. Log in to vote for Combine JPG in print
Number 19: GeoTag.world

Online Tools & Utilities

DR 5 no change since last check 0 votes. Log in to vote for GeoTag.world in print
Number 20: Rare Personas

Free personality quizzes with honest results about archetypes

CalculatorsLithuania

DR 4 +1 (up) since last check 0 votes. Log in to vote for Rare Personas in print
Number 21: Iris Analyzer

Free eye color test that measures your iris from a close-up photo

Online Tools & Utilities

DR 3 no change since last check 0 votes. Log in to vote for Iris Analyzer in print
Number 22: EcomCalc

Free ecommerce calculators for profit margin, CAC, LTV, pricing, Shopify fees, and more

Calculators

DR 5 no change since last check 0 votes. Log in to vote for EcomCalc in print
Number 23: Snapchat Memories Download

Download Snapchat Memories with the real capture dates, GPS, and overlays restored

File converters

DR 0 no change since last check 0 votes. Log in to vote for Snapchat Memories Download in print
Number 24: AppCost.AI

AI-powered software development cost calculator

CalculatorsVietnam

DR 27 no change since last check 0 votes. Log in to vote for AppCost.AI in print

Community votes come from members and cannot be bought. DR is Domain Rating by Ahrefs.

The Billboard: paid placement

We'll say it plainly: these spots are paid for, and whoever has paid the most in total goes first. Votes stay out of it.

The whole Billboard Paste yours up from $5

About Online Tools & Utilities

Some of the best things on the web do a single job and then get out of the way. This shelf is for those: browser-based gadgets, pocket-sized utilities and one-trick apps made by people who spotted an irritation and fixed it over a few late evenings. Think of the tab you keep pinned for months, or the link a friend sends when you moan about a chore.

This page gathers products and businesses from every subcategory below, with filters to narrow things down. Newest arrivals show first; switch to community votes if you want the crowd's pick, and votes can never be bought. Each product has a single main category, included free. Founders add theirs at /submit. A paid launch costs $5, while a free listing waits in a queue of about 1-2 weeks.

Browse Online Tools & Utilities by type

Online Tools & Utilities: questions answered

What counts as an online tool or utility here?: Anything that does a narrow, practical job for the visitor, usually in the browser and without a steep learning curve. Calculators, converters, PDF helpers, text cleaners and mailbox rescue services fit. Broad suites with many unrelated features tend to belong in a different category.
How do I pick the right subcategory for my product?: Go by what the visitor hands over and what comes back. Figures in, answer out is a calculator. Same content in a new format is a converter. Work aimed squarely at PDFs goes under PDF tools. Overlap can be covered with the extra-categories upgrade, $5.
How are products ordered on this page?: Newest listings come first by default. Visitors can re-sort by community votes instead, and votes can never be bought, so a paid launch does not buy a higher spot in that ranking. Filters let you narrow the list by subcategory.
How do I get my utility listed in this category?: Open /submit and give it your site's URL. An AI sketches the profile from that site, then you read through each field and rewrite whatever is off. Nothing goes live until you approve it. Choose this category, or one of its subcategories, as your main one.
What should I compare when choosing between similar tools?: Look at how plainly the tool explains what it does with your files or data, whether it works without forcing an account, and what limits it sets on size or volume. Check the result on something low-stakes first, and see whether the maker is reachable if it breaks.

Related categories

Building something in Online Tools & Utilities? List your product here.