Model a school report with several subjects across one to four grading periods.
Education & examsNewUse this tool
Local First • Free • No sign-up required
Your tools.Connected.Right in your browser.
Transform text, files, images and data locally. Use each tool here, embed it on your site or chain tools together in a visual Workspace.
430+free toolsReady to use, across 15 categories420+embeddable widgetsEvery tool can live on your site
100%local processingYour files never leave your browser
0account requiredEverything is free, an account only syncs your setup
1Visual WorkspaceChain your tools into pipelinesAlready have a file, text or link?
Start with what you have. Bethemesh guides you to the right tools.
Drop one or more files here
Or click to choose a file
Everything stays in your browser: nothing is sent to Bethemesh.
Explore
A tool for every task.
From documents to data, from building sites to health: 15 areas, one standard.
Mathematics & calculation
49 tools- Fraction Calculator with Steps
- Number to words (and words to number)
- Convert °C to °F (and °F to °C)
- Random number generator (draws, dice, lottery)
47 tools
Dates & time
Date calculations · Durations
36 tools
Images & graphics
Image conversion · Dimensions & transformations
34 tools
Finance & business
Loans & credit · Interest & savings
30 tools
Development
Structured formats · Formatting & code
27 tools
Data & spreadsheets
CSV & spreadsheets · Cleaning & transformation
24 tools
Text & writing
Cleaning & transformation · Lists & lines
23 tools
Construction & renovation
Concrete & masonry · Floors & coverings
23 tools
Audio
Audio conversion · Audio editing
21 tools
Web & SEO
SEO & metadata · URLs & links
20 tools
Security & privacy
Passwords · Authentication & tokens
18 tools
Science
Physics · Chemistry
15 tools
Education & exams
Averages & targets · Exams & diplomas
14 tools
Health & wellness
Body measurements · Energy & metabolism
430+All toolsBeyond single tools
Assemble your tools into pipelines.
Chain several modules, preview every step and save the recipe to replay it on new data. Your files are never uploaded.
- Import text, files, tables or images
- Chain transformations in the order you need
- Save, export as JSON and replay
Embeddable anywhere
Every tool can also live on your site.
Add the widget version of any tool to WordPress, Webflow, Wix or a plain HTML page. Same local processing, same respect for your data.
Copy and paste
A few lines of code
Responsive
Adapts to your page
Documented
One page per widget
What’s new
New tools, all the time.
Replace a text fragment in a pasted or imported document.
Text & writingNewUse this tool
Check an API description in JSON or YAML without uploading it.
DevelopmentNewUse this tool
Extract selectable PDF text as UTF-8 TXT, choose pages, inspect the preview and copy the result without OCR.
PDF & documentsNewUse this tool
Compare both connections with a circuit diagram, tolerances and individual currents and powers.
ScienceNewUse this tool
Separate scanned spreads vertically or horizontally, adjust the cut and choose the reading order without rasterizing every page.
PDF & documentsNewUse this tool
Enter any two values among voltage, current, resistance and power to calculate the other two automatically.
ScienceNewFeaturedUse this tool
Calculate a dilution concentration or volume from three known values using C₁V₁ = C₂V₂.
ScienceNewFeaturedUse this tool
Calculate density, mass or volume from any two known values with automatic unit conversion.
ScienceNewFeaturedUse this tool
Calculate average speed, distance or elapsed time from any two known values with automatic unit conversion.
ScienceNewFeaturedUse this tool
Calculate net force, mass or acceleration from any two known values using F = ma.
ScienceNewFeaturedUse this tool
Calculate molar concentration, amount of substance or solution volume from any two known values.
ScienceNewFeaturedUse this tool
Local First
Your data stays with you. Period.
Everything works for free and without an account. Your preferences, favourites and pipelines stay in your browser; an account only brings your pipelines, templates and favourites to another device.
Learn about syncProcessing in the browser
Tools marked “100% local” never upload your text, files or images.
JSON export and import
Back up your pipelines and personal templates to a portable file, even without an account, and import them again.
Optional account
Sync pipelines, templates and favourites across all your devices. Never your files.
Resources
Guides, methods and stories.
The latest guides, tutorials and profiles published on Bethemesh.
NewsConcepts and technologiesIntermediate
Is local browser processing replacing traditional online tools?
WebAssembly, browser APIs and faster devices enable more processing locally. How far can this approach replace services that upload files to servers?
30 August 20264 min
GuideBest practicesBeginner
Spain's PAU: access grades, admission scores and cut-offs
Calculate the Bachillerato–PAU access grade, check both minimum thresholds and understand weighted subjects, cut-offs and result validity.
29 October 20263 min
BiographyComputing historyBeginner
Ken Thompson: from Unix to Go, simplicity as a method
Discover how Ken Thompson connected Unix, the B language, and Go through the same pursuit of simplicity, efficiency, and composable tools.
24 August 20267 min