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Browse the full toolbox — calculators, checkers and guides for the eSIM era.
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The esimgomobile toolbox · 31 free tools
Every travel-connectivity question, answered.
Calculators, checkers and guides for the eSIM era — the same 30 tools inside the esimgomobile ChatGPT app, plus Find My Plan, an AI trip-to-plan matcher, running here in your browser. No account, no install, no invented results: live tools compute locally, and roadmap tools say so honestly.
Measure, grade and secure the connection you're on right now.
Live now
Speed Test
Measure your real download speed, ping and connection quality grade — runs live in your browser.
Open tool → Live nowWhat's My IP
See the public IP address websites see when you visit them — shown only to you, never stored.
Open tool → Live nowAm I Roaming?
A straight answer: compare your home country with where you are now and find out if you're roaming.
Open tool → Live browser checkBrowser latency check
Measure fetch timing from your browser to this website.
Open tool → Live nowConnection Quality
Enter download, upload and ping — get an Excellent/Good/Fair/Poor verdict with practical advice.
Open tool → Live nowCaptive Portal Detector
Guided step-by-step check for hotel, airport and café Wi-Fi login walls.
Open tool → Live nowDNS Leak Test
A guided manual check for DNS leaks outside your VPN — honest about what browsers can and can't probe.
Open tool → Live nowWi-Fi Security Checklist
The practical safety checklist for public, hotel and airport Wi-Fi.
Open tool → Live nowSpeed Needed For
How much bandwidth does 4K streaming, video calls or gaming actually need? Reference table.
Open tool →Plan the trip: data, roaming costs, devices, destinations.
Live now
Coverage Checker
Check whether a country is covered by esimgomobile plans — live across 195 destinations.
Open tool → Live nowData Usage Estimator
Estimate your trip's data needs from days, hours online and usage profile — with a suggested plan size.
Open tool → Live nowRoaming Cost Calculator
Compare your carrier's roaming day-pass against real esimgomobile travel-pack prices.
Open tool → Live nowMulti-Country Guide
Enter your itinerary — get a single-country vs regional vs global plan recommendation.
Open tool → Live nowFind My Plan
Describe your trip in plain words — Workers AI matches it against the real plan catalog. No invented prices.
Open tool → Live nowDevice Compatibility Checker
Check whether your phone model supports eSIM, with a manual verification fallback.
Open tool → Live nowCarrier-Lock Check
Step-by-step check that your phone is carrier-unlocked for travel eSIMs.
Open tool → Carrier guideCountry carrier guide
Look up listed carriers by country. No city performance ranking.
Open tool →Airport guideAirport connectivity
Look up airport Wi-Fi notes by IATA code. Confirm access on arrival.
Open tool → Live nowFree Wi-Fi Finder
Real mapped free-Wi-Fi venues by city — live OpenStreetMap lookup.
Open tool → Live nowCountry Fact Sheet
Networks, eSIM support, Wi-Fi and good-to-know notes for popular destinations.
Open tool → Live nowInternet Freedom Check
High-level internet-restriction snapshot for a country — a travel starting point, not legal advice.
Open tool →Install, configure and fix your eSIM like a pro.
Live now
Installation Guide
Step-by-step eSIM installation for iPhone and Android, via QR code or manual entry.
Open tool → Live nowTroubleshooter
Diagnose eSIM problems: no service, no data, slow data, QR issues, activation failures.
Open tool → Live nowAPN Lookup
APN settings lookup for carriers — most travel eSIMs configure automatically.
Open tool → Live nowDual-SIM Helper
Configure a home line plus travel eSIM: which line does data, calls, iMessage — and how to avoid roaming charges.
Open tool → Live nowData-Saver Setup
Stretch a travel data plan: OS-specific steps for low-data mode, offline downloads and background limits.
Open tool → Live nowDialing Helper
Format a local number for international dialing — country codes, trunk and IDD prefixes.
Open tool →Manage your esimgomobile account.
Manual calculator
Data balance calculator
Calculate remaining data from the plan size and usage you enter.
Open tool →Sample previeweSIM library preview
Explore sample profiles. Not connected to your account.
Open tool →Details checkActivation details check
Check order-detail formats. Contact Support to request a QR reissue.
Open tool →Usage forecastLow-data forecast
Estimate when your data may run low. No automatic alerts.
Open tool →
Questions, answered
Before you ask.
Are these tools really free?
Yes. Every tool on this page is free to use, with no account and nothing to install. Tools marked live now run entirely in your browser; tools marked on the roadmap are honest previews of what is coming next.
Do the tools send my data anywhere?
No. The live tools compute everything in your browser from what you type — nothing is stored, transmitted or sold. Phone numbers entered into the Dialing Helper, for example, are used only to produce the dial string. One exception: Find My Plan sends your trip description to our AI matching endpoint to generate the recommendation — it is never logged with your identity.
What does 'on the roadmap' mean?
Some tools need backend pieces — licensed datasets, account auth, real-time usage data — that are still being built. Those pages explain what the tool will do and say so honestly instead of faking results.
Are these the same tools as in the ChatGPT app?
The same 30 tools ship in the esimgomobile ChatGPT app and here on the web. Same schemas, same deterministic logic, same honesty rules. The web versions use an HTML interface instead of the chat widget. The web toolbox adds a 31st: Find My Plan, an AI trip-to-plan matcher.
Can developers call these tools as an API?
That's the plan: every tool maps to the esimgomobile API surface for human developers and AI agents alike — REST, SDKs, CLI and an MCP server. See the developer docs for the API-first vision.
Which tool should I start with?
Traveling soon? Start with the Device Compatibility Checker (is your phone eSIM-ready?), the Carrier-Lock Check, then the Data Usage Estimator to size your plan. On hotel Wi-Fi right now? The Captive Portal Detector and Wi-Fi Security Checklist.
Live now
Get connected today.
Monthly plans from $8/mo, travel packs from $3.65. Real checkout, no waiting.
Keep exploring
Your next step.
💳
Pricing
See how esimgomobile's eSIM plans, virtual numbers and Tele Agent are structured.
View pricing🛠️
Developers
Every tool is also an API. REST, SDKs, CLI and an MCP server for AI agents.
Developer docs📶
eSIM plans
Real mobile data plus a real phone number on an eSIM — voice and SMS included on compatible phones.
eSIM plansThe experience
Take the tour.
Twenty product screens and twenty field photos — this is what traveling connected looks like.
My eSIM
35%10 GB left
Days left22
Top up+10 GB
- 1Live usage ring: see remaining data at a glance, no mental math.
- 2Top-up button sits right where you need it when data runs low.
Ready for your trip?
Get your eSIM
- 1A real support transcript: the question, then the specific answer.
- 2This is what 'AI support' actually looks like in practice.
Ready for your trip?
Get your eSIM
Live now · plans available
- 1Coverage status at a glance: data live, number available, 5G ready.
- 2Green means go — no guessing about what's supported.
Support
How does Free Travel-Connectivity Tools work?
Enter your trip details and get an instant answer — no account needed.
- 1Coverage status at a glance: data live, number available, 5G ready.
- 2Green means go — no guessing about what's supported.
Free Travel-Connectivity Tools
Travel guides · 8 min read
- 1The dashboard keeps every eSIM, every trip, in one place.
- 2Rows show data left, days left and current city at a glance.
Free Travel-Connectivity Tools · coverage
5 carriers · automatic selection
- 1A real support transcript: the question, then the specific answer.
- 2This is what 'AI support' actually looks like in practice.
API quickstart
curl https://api.esimgomobile.com/v1/esims \
-H "Authorization: Bearer $KEY" \
-d '{"country":"FR"}'200 OK · 45 ms
- 1Checkout shows the full price before you pay. Nothing hidden.
- 2Amazon Pay handles payment securely; taxes are calculated for you.
eSIM plan
Atlas 50GB50 GB · 60 days
Free Travel-Connectivity Tools
Install eSIM
- 1The plan card shows exactly what you're buying — data, days, destination.
- 2One tap starts the two-minute QR install.
Free Travel-Connectivity Tools · 5G
- 1Signal widget: network generation and destination, always visible.
- 2Five bars, zero ambiguity about what you're connected to.
Language
English日本語Português
- 1Signal widget: network generation and destination, always visible.
- 2Five bars, zero ambiguity about what you're connected to.
Install
1 Scan2 Add3 Go
- 1Live usage ring: see remaining data at a glance, no mental math.
- 2Top-up button sits right where you need it when data runs low.
Launch facts
195destinations live
31free tools
$8entry monthly plan
- 1Mockups illustrate the product flow — captions describe what's real.
- 2Figures labeled as examples show sample data, never live telemetry.
Recent speeds
Istanbul722 Mbps
Singapore820 Mbps
Singapore365 Mbps
- 1A real support transcript: the question, then the specific answer.
- 2This is what 'AI support' actually looks like in practice.
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · Free Travel-Connectivity Tools
- 1The roaming math, made visible: one price versus per-day carrier fees.
- 2This is the comparison most travelers never see until the bill.
Atlas Unlimited
Unlimited · 30 days
Free Travel-Connectivity Tools
- 1Usage ring compresses the whole plan into one glanceable number.
- 2Percent remaining is the only metric most travelers check.
Get connected
1 Pick a plan2 Scan QR3 Land online
- 1Coverage status at a glance: data live, number available, 5G ready.
- 2Green means go — no guessing about what's supported.
Plans for Free Travel-Connectivity Tools
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
- 1Three plans side by side so the trade-off is obvious.
- 2Pick by trip length, not by decoding fine print.
Checkout
Atlas Unlimited — Free Travel-Connectivity Toolstotal
Taxescalculated
Pay securely
256-bit encrypted · Amazon Pay
- 1Three plans side by side so the trade-off is obvious.
- 2Pick by trip length, not by decoding fine print.
Speed test
884Mbps
5G · Free Travel-Connectivity Tools · 20 ms
- 1The plan card shows exactly what you're buying — data, days, destination.
- 2One tap starts the two-minute QR install.
eSIM installedYour Free Travel-Connectivity Tools plan is ready.
Push · just now
- 1The roaming math, made visible: one price versus per-day carrier fees.
- 2This is the comparison most travelers never see until the bill.
Explainer
How this tool works
- Open the tool
- No account needed — this tool runs right in your browser.
- Everything happens on the page; nothing to install.
- Enter your details
- Answer the few questions the tool asks — trip, destination, dates.
- The tool validates as you type so mistakes get caught early.
- Get your answer
- Results appear instantly, computed from your inputs.
- Every result links onward to the next step — usually a plan or checkout.
- Act on it
- Apply the result: pick a plan, install the eSIM, or save the guidance.
- You can rerun the tool any time; your last inputs are remembered.
The pattern is always the same: tell the tool a little about your trip, and it does the research you'd otherwise do across ten tabs.
Tools are free and instant. They're the fastest way to turn a vague travel question into a concrete next step.
Explainer
When to use this tool
- After the trip: to review what you used and plan smarter next time.
- Mid-trip: when you need to top up, switch plans, or check what's next.
- While planning: before you book anything, so connectivity is priced into the trip.
- At the airport: for last-minute answers when plans change.
Most travelers use this tool once while planning and once on the road. Both visits take under a minute.
Bookmark it — travel questions have a habit of returning at the worst moment.
Explainer
Tips for best results
- Download offline maps for your destination — they save data and work in dead zones.
- Keep your home SIM active for two-factor codes from your bank; run data on the eSIM line.
- Screenshot your hotel address and booking confirmations — you'll want them with no signal.
- Save your eSIM QR code somewhere safe (email it to yourself) in case you switch phones mid-trip.
- WhatsApp, iMessage and FaceTime keep your existing number on a data eSIM — no need to tell anyone a new number.
- Hotspot sparingly: one laptop tethered all day can burn through a week of phone data.
The tool is only as good as its inputs — a rough date range beats a perfect one you never enter.
If a result surprises you, rerun with different inputs. Exploring the options is the point.
Explainer
What happens next
Every tool result points somewhere useful: usually a plan that fits, sometimes a guide that goes deeper.
And if you'd rather talk it through, the Tele Agent answers the same questions conversationally, any time.
From here the path is short — pick a plan, check out through Amazon Pay, scan the QR code, and you're done.
Feature availability
Every capability of this tool, listed
The complete availability matrix — what this tool does, what it accepts, and what you can count on. No asterisks.
| Capability | Status | What it means for you |
|---|---|---|
| Onward links | Included | Every result links to the natural next step — the plan, guide or checkout it points to. |
| Works on any device | Included | Phone, tablet or desktop — the tool adapts to the screen in your hand. |
| Private by design | Included | Your inputs are processed in your browser session; nothing sensitive is stored against you. |
| Free to use | Included | Every run of the tool is free. No credits, no paywall, no trial that expires mid-trip. |
| Remembers last inputs | Included | Your most recent entries are kept so reruns take seconds, not minutes. |
| No account required | Included | The tool works for anonymous visitors — answers first, signup never forced. |
| Shareable answers | Included | Send the result to travel companions so everyone plans from the same numbers. |
| Instant results | Included | Computation happens the moment you submit. No queues, no waiting room. |
Specifications
this tool: inputs and outputs
What you provide
Your trip detailsValidated as you type · optional unless marked
What you get back
A clear answerComputed from your inputs — a number, a plan, or a yes/no
Next-step linksStraight to the plan, setting or guide the answer points to
Plain-language explanationWhy this answer, in words — not just a number on screen
Shareable resultSend it to companions so everyone plans from the same page
Capabilities
What this tool is built to do well
Validated inputs
Mistakes get caught before they become wrong answers — ranges, formats and required fields are checked live.
Companion to the Tele Agent
Prefer conversation? The Tele Agent answers the same questions in chat, with the same data behind it.
Rerun friendly
Change one input and see the answer update — exploring options is the whole point.
Works offline-ish
Once loaded, the tool keeps working through flaky airport Wi-Fi for the inputs you've already entered.
Trip-aware math
Results account for trip length, destination and usage profile instead of giving one-size-fits-all numbers.
Plain-language output
No telecom jargon in the results. If a term needs explaining, the tool explains it inline.
Use cases
Who reaches for this tool
The planner
Run the numbers weeks ahead — know the right plan before you book anything.
The airport sprinter
Flight delayed, plans changed? Get the answer in under a minute at the gate.
The remote worker
Size data for video calls and hotspotting with confidence, not guesswork.
The budget hawk
See exactly what each option costs before a cent moves — prepaid means no surprises.
The repeat traveler
Saved inputs make the second, third and tenth run nearly instant.
The family organizer
One tool covering every traveler's needs — run it once per person, compare, done.
FAQ
Questions about this tool
Do I need an account?
No — tools work for anonymous visitors. If you do have an account, your last inputs are remembered.
How accurate are the answers?
They're computed from your inputs against current plan and coverage data. Garbage in, garbage out — so the tool validates inputs as you type.
What happens after I get an answer?
Each result links onward: usually the plan it recommends, sometimes a deeper guide.
Does the tool cost anything?
No. Every tool on esimgomobile is free to use, as many times as you like.
Is my data shared?
Your inputs stay in your browser session. We don't sell tool usage data, and there's no ad tracker watching the form.
Can I use it on my phone?
Yes — every tool is built mobile-first, because that's where travel questions happen.
See the math
Free Travel-Connectivity Tools, visualized.
Free Travel-Connectivity Tools — data dashboard
The product's headline numbers, switchable by dataset.
195
destinations live
global footprint
4
Atlas plans
prepaid, no contracts
~2 min
typical install
QR scan to online
6
app languages
EN ES FR DE PT JA
Hover any bar or point for its exact value. Tabs switch datasets — everything on this panel is computed from live product data unless labeled illustrative.
Put this tool to work on your next trip
Part of the free travel toolkit: check, plan and configure before you fly.